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I built the Level Monitor to check the level of grain in our wet bin, (where the wet corn go to before they enter the dryer) so we don’t have to climb up the 40ft of ladder every time we want to know how full it is. This is especially tedious when the grain dryer isn’t quite fast enough to keep up with the flow of grain coming in from the field. the wet bin then needs to be checked more often to make sure it doesn't run over or plug the Grain Leg.
Level Monitor device inside a grain bin.
It works by lowering a plastic weight down into the bin and, once the weight hits the grain, it lets weight off the micro-switch and instantly reverses a motor to wind the weight back in. The fishing line that's attached to the weight is wrapped around a pulley that's on the encoders shaft, the photon counts the pulses on the way down and on the way back up. it then takes the average number of pulses on those two runs, and converts them into 'Inches that the weight traveled'. You have to enter the height of your bin in the app, and it figures out how full the bin is.
I built in some timers so that it could be run at a certain time of the day, or at a specified interval. Making things more compatible with the Industrial Automation Industry, I also used a voltage to current converter to output a 4-20mA signal that can be read with most Industrial Controllers. I then built in a relay where you could hook up a horn or a flashing light to tell you that the grain bin has reached a certain level. Th level is also adjustable from within the app.
We also have a Aquifer Recharge Project where we use this device with a wooden weight. We lower it into a 2" PVC pipe (Measuring Well) that goes into the ground about 60' to 80'.
1 / 3 • Logging Measuring Wells to Google Sheets
In springtime when the snow melts and floods the river, we pump the flood water into a large holding pond. The water then seeps into the ground at about 1500 gallons per minute (it's a really big holding pond) and recharges the aquifer. We know this because we have about 20 measuring wells all around the pond. The Closest wells to the pond, go up about 2-5" every 24 hrs. We pump approximately 1, 000 acre feet of water into the aquifer each year. We then use that water all summer long to water our potatoes, sugar beets, corn and beans.
The state requires us to take a reading of all the wells at least once a week. Since its spring, it's hard to get to the measuring wells because of the mud.
I take a measurement of the wells once a day and log it to Google sheets. Once we get them all set up with a level device, this will save us a lot of time and mud.
I use our app called HMI Editor to make the GUI. I use the REST API within the app to communicate with the Particle Cloud.
1 / 2 • HMI Editor Screenshots.
I also made a Blank app so that the Android users don't feel too left out. :-)
1 / 2 • Blynk App Controlling the Bin Level device.
#include "Particle.h"
#include "softap_http.h"
struct Page
{
const char* url;
const char* mime_type;
const char* data;
};
const char index_html[] = "<!DOCTYPE html><html><head><meta name='viewport' content='width=device-width, initial-scale=1'><title>Setup your device</title><link rel='stylesheet' type='text/css' href='style.css'></head><body><h1>Connect me to your WiFi!</h1><h3>My device ID:</h3><input type=text id='device-id' size='25' value='' disabled/><button type='button' class='input-helper' id='copy-button'>Copy</button><div id='scan-div'><h3>Scan for visible WiFi networks</h3><button id='scan-button' type='button'>Scan</button></div><div id='networks-div'></div><div id='connect-div' style='display: none'><p>Don't see your network? Move me closer to your router, then re-scan.</p><form id='connect-form'><input type='password' id='password' size='25' placeholder='password'/><button type='button' class='input-helper' id='show-button'>Show</button><button type='submit' id='connect-button'>Connect</button></form></div><script src='rsa-utils/jsbn_1.js'></script><script src='rsa-utils/jsbn_2.js'></script><script src='rsa-utils/prng4.js'></script><script src='rsa-utils/rng.js'></script><script src='rsa-utils/rsa.js'></script><script src='script.js'></script></body></html>";
const char rsa_js[] = "function parseBigInt(a,b){return new BigInteger(a,b);}function linebrk(a,b){var c='';var d=0;while(d+b<a.length){c+=a.substring(d,d+b)+'\\n';d+=b;}return c+a.substring(d,a.length);}function byte2Hex(a){if(a<0x10)return '0'+a.toString(16);else return a.toString(16);}function pkcs1pad2(a,b){if(b<a.length+11){alert('Message too long for RSA');return null;}var c=new Array();var d=a.length-1;while(d>=0&&b>0){var e=a.charCodeAt(d--);if(e<128)c[--b]=e;else if((e>127)&&(e<2048)){c[--b]=(e&63)|128;c[--b]=(e>>6)|192;}else{c[--b]=(e&63)|128;c[--b]=((e>>6)&63)|128;c[--b]=(e>>12)|224;}}c[--b]=0;var f=new SecureRandom();var g=new Array();while(b>2){g[0]=0;while(g[0]==0)f.nextBytes(g);c[--b]=g[0];}c[--b]=2;c[--b]=0;return new BigInteger(c);}function RSAKey(){this.n=null;this.e=0;this.d=null;this.p=null;this.q=null;this.dmp1=null;this.dmq1=null;this.coeff=null;}function RSASetPublic(a,b){if(a!=null&&b!=null&&a.length>0&&b.length>0){this.n=parseBigInt(a,16);this.e=parseInt(b,16);}else alert('Invalid RSA public key');}function RSADoPublic(a){return a.modPowInt(this.e,this.n);}function RSAEncrypt(a){var b=pkcs1pad2(a,(this.n.bitLength()+7)>>3);if(b==null)return null;var c=this.doPublic(b);if(c==null)return null;var d=c.toString(16);if((d.length&1)==0)return d;else return '0'+d;}RSAKey.prototype.doPublic=RSADoPublic;RSAKey.prototype.setPublic=RSASetPublic;RSAKey.prototype.encrypt=RSAEncrypt;";
const char style_css[] = "html{height:100%;margin:auto;background-color:white}body{box-sizing:border-box;min-height:100%;padding:20px;background-color:#1aabe0;font-family:'Lucida Sans Unicode','Lucida Grande',sans-serif;font-weight:normal;color:white;margin-top:0;margin-left:auto;margin-right:auto;margin-bottom:0;max-width:400px;text-align:center;border:1px solid #6e6e70;border-radius:4px}div{margin-top:25px;margin-bottom:25px}h1{margin-top:25px;margin-bottom:25px}button{border-color:#1c75be;background-color:#1c75be;color:white;border-radius:5px;height:30px;font-size:15px;font-weight:bold}button.input-helper{background-color:#bebebe;border-color:#bebebe;color:#6e6e70;margin-left:3px}button:disabled{background-color:#bebebe;border-color:#bebebe;color:white}input[type='text'],input[type='password']{background-color:white;color:#6e6e70;border-color:white;border-radius:5px;height:25px;text-align:center;font-size:15px}input:disabled{background-color:#bebebe;border-color:#bebebe}input[type='radio']{position:relative;bottom:-0.33em;margin:0;border:0;height:1.5em;width:15%}label{padding-top:7px;padding-bottom:7px;padding-left:5%;display:inline-block;width:80%;text-align:left}input[type='radio']:checked+label{font-weight:bold;color:#1c75be}.scanning-error{font-weight:bold;text-align:center}.radio-div{box-sizing:border-box;margin:2px;margin-left:auto;margin-right:auto;background-color:white;color:#6e6e70;border:1px solid #6e6e70;border-radius:3px;width:100%;padding:5px}#networks-div{margin-left:auto;margin-right:auto;text-align:left}#device-id{text-align:center}#scan-button{min-width:100px}#connect-button{display:block;min-width:100px;margin-top:10px;margin-left:auto;margin-right:auto;margin-bottom:20px}#password{margin-top:20px;margin-bottom:10px}";
const char rng_js[] = "var rng_state;var rng_pool;var rng_pptr;function rng_seed_int(a){rng_pool[rng_pptr++]^=a&255;rng_pool[rng_pptr++]^=(a>>8)&255;rng_pool[rng_pptr++]^=(a>>16)&255;rng_pool[rng_pptr++]^=(a>>24)&255;if(rng_pptr>=rng_psize)rng_pptr-=rng_psize;}function rng_seed_time(){rng_seed_int(new Date().getTime());}if(rng_pool==null){rng_pool=new Array();rng_pptr=0;var t;if(window.crypto&&window.crypto.getRandomValues){var ua=new Uint8Array(32);window.crypto.getRandomValues(ua);for(t=0;t<32;++t)rng_pool[rng_pptr++]=ua[t];}if(navigator.appName=='Netscape'&&navigator.appVersion<'5'&&window.crypto){var z=window.crypto.random(32);for(t=0;t<z.length;++t)rng_pool[rng_pptr++]=z.charCodeAt(t)&255;}while(rng_pptr<rng_psize){t=Math.floor(65536*Math.random());rng_pool[rng_pptr++]=t>>>8;rng_pool[rng_pptr++]=t&255;}rng_pptr=0;rng_seed_time();}function rng_get_byte(){if(rng_state==null){rng_seed_time();rng_state=prng_newstate();rng_state.init(rng_pool);for(rng_pptr=0;rng_pptr<rng_pool.length;++rng_pptr)rng_pool[rng_pptr]=0;rng_pptr=0;}return rng_state.next();}function rng_get_bytes(a){var b;for(b=0;b<a.length;++b)a[b]=rng_get_byte();}function SecureRandom(){}SecureRandom.prototype.nextBytes=rng_get_bytes;";
const char jsbn_2_js[] = "function bnpRShiftTo(a,b){b.s=this.s;var c=Math.floor(a/this.DB);if(c>=this.t){b.t=0;return;}var d=a%this.DB;var e=this.DB-d;var f=(1<<d)-1;b[0]=this[c]>>d;for(var g=c+1;g<this.t;++g){b[g-c-1]|=(this[g]&f)<<e;b[g-c]=this[g]>>d;}if(d>0)b[this.t-c-1]|=(this.s&f)<<e;b.t=this.t-c;b.clamp();}function bnpSubTo(a,b){var c=0,d=0,e=Math.min(a.t,this.t);while(c<e){d+=this[c]-a[c];b[c++]=d&this.DM;d>>=this.DB;}if(a.t<this.t){d-=a.s;while(c<this.t){d+=this[c];b[c++]=d&this.DM;d>>=this.DB;}d+=this.s;}else{d+=this.s;while(c<a.t){d-=a[c];b[c++]=d&this.DM;d>>=this.DB;}d-=a.s;}b.s=(d<0)?-1:0;if(d<-1)b[c++]=this.DV+d;else if(d>0)b[c++]=d;b.t=c;b.clamp();}function bnpMultiplyTo(a,b){var c=this.abs(),d=a.abs();var e=c.t;b.t=e+d.t;while(--e>=0)b[e]=0;for(e=0;e<d.t;++e)b[e+c.t]=c.am(0,d[e],b,e,0,c.t);b.s=0;b.clamp();if(this.s!=a.s)BigInteger.ZERO.subTo(b,b);}function bnpSquareTo(a){var b=this.abs();var c=a.t=2*b.t;while(--c>=0)a[c]=0;for(c=0;c<b.t-1;++c){var d=b.am(c,b[c],a,2*c,0,1);if((a[c+b.t]+=b.am(c+1,2*b[c],a,2*c+1,d,b.t-c-1))>=b.DV){a[c+b.t]-=b.DV;a[c+b.t+1]=1;}}if(a.t>0)a[a.t-1]+=b.am(c,b[c],a,2*c,0,1);a.s=0;a.clamp();}function bnpDivRemTo(a,b,c){var d=a.abs();if(d.t<=0)return;var e=this.abs();if(e.t<d.t){if(b!=null)b.fromInt(0);if(c!=null)this.copyTo(c);return;}if(c==null)c=nbi();var f=nbi(),g=this.s,h=a.s;var i=this.DB-nbits(d[d.t-1]);if(i>0){d.lShiftTo(i,f);e.lShiftTo(i,c);}else{d.copyTo(f);e.copyTo(c);}var j=f.t;var k=f[j-1];if(k==0)return;var l=k*(1<<this.F1)+((j>1)?f[j-2]>>this.F2:0);var m=this.FV/l,n=(1<<this.F1)/l,o=1<<this.F2;var p=c.t,q=p-j,r=(b==null)?nbi():b;f.dlShiftTo(q,r);if(c.compareTo(r)>=0){c[c.t++]=1;c.subTo(r,c);}BigInteger.ONE.dlShiftTo(j,r);r.subTo(f,f);while(f.t<j)f[f.t++]=0;while(--q>=0){var s=(c[--p]==k)?this.DM:Math.floor(c[p]*m+(c[p-1]+o)*n);if((c[p]+=f.am(0,s,c,q,0,j))<s){f.dlShiftTo(q,r);c.subTo(r,c);while(c[p]<--s)c.subTo(r,c);}}if(b!=null){c.drShiftTo(j,b);if(g!=h)BigInteger.ZERO.subTo(b,b);}c.t=j;c.clamp();if(i>0)c.rShiftTo(i,c);if(g<0)BigInteger.ZERO.subTo(c,c);}function bnMod(a){var b=nbi();this.abs().divRemTo(a,null,b);if(this.s<0&&b.compareTo(BigInteger.ZERO)>0)a.subTo(b,b);return b;}function Classic(a){this.m=a;}function cConvert(a){if(a.s<0||a.compareTo(this.m)>=0)return a.mod(this.m);else return a;}function cRevert(a){return a;}function cReduce(a){a.divRemTo(this.m,null,a);}function cMulTo(a,b,c){a.multiplyTo(b,c);this.reduce(c);}function cSqrTo(a,b){a.squareTo(b);this.reduce(b);}Classic.prototype.convert=cConvert;Classic.prototype.revert=cRevert;Classic.prototype.reduce=cReduce;Classic.prototype.mulTo=cMulTo;Classic.prototype.sqrTo=cSqrTo;function bnpInvDigit(){if(this.t<1)return 0;var a=this[0];if((a&1)==0)return 0;var b=a&3;b=(b*(2-(a&0xf)*b))&0xf;b=(b*(2-(a&0xff)*b))&0xff;b=(b*(2-(((a&0xffff)*b)&0xffff)))&0xffff;b=(b*(2-a*b%this.DV))%this.DV;return(b>0)?this.DV-b:-b;}function Montgomery(a){this.m=a;this.mp=a.invDigit();this.mpl=this.mp&0x7fff;this.mph=this.mp>>15;this.um=(1<<(a.DB-15))-1;this.mt2=2*a.t;}function montConvert(a){var b=nbi();a.abs().dlShiftTo(this.m.t,b);b.divRemTo(this.m,null,b);if(a.s<0&&b.compareTo(BigInteger.ZERO)>0)this.m.subTo(b,b);return b;}function montRevert(a){var b=nbi();a.copyTo(b);this.reduce(b);return b;}function montReduce(a){while(a.t<=this.mt2)a[a.t++]=0;for(var b=0;b<this.m.t;++b){var c=a[b]&0x7fff;var d=(c*this.mpl+(((c*this.mph+(a[b]>>15)*this.mpl)&this.um)<<15))&a.DM;c=b+this.m.t;a[c]+=this.m.am(0,d,a,b,0,this.m.t);while(a[c]>=a.DV){a[c]-=a.DV;a[++c]++;}}a.clamp();a.drShiftTo(this.m.t,a);if(a.compareTo(this.m)>=0)a.subTo(this.m,a);}function montSqrTo(a,b){a.squareTo(b);this.reduce(b);}function montMulTo(a,b,c){a.multiplyTo(b,c);this.reduce(c);}Montgomery.prototype.convert=montConvert;Montgomery.prototype.revert=montRevert;Montgomery.prototype.reduce=montReduce;Montgomery.prototype.mulTo=montMulTo;Montgomery.prototype.sqrTo=montSqrTo;function bnpIsEven(){return((this.t>0)?(this[0]&1):this.s)==0;}function bnpExp(a,b){if(a>0xffffffff||a<1)return BigInteger.ONE;var c=nbi(),d=nbi(),e=b.convert(this),f=nbits(a)-1;e.copyTo(c);while(--f>=0){b.sqrTo(c,d);if((a&(1<<f))>0)b.mulTo(d,e,c);else{var g=c;c=d;d=g;}}return b.revert(c);}function bnModPowInt(a,b){var c;if(a<256||b.isEven())c=new Classic(b);else c=new Montgomery(b);return this.exp(a,c);}BigInteger.prototype.copyTo=bnpCopyTo;BigInteger.prototype.fromInt=bnpFromInt;BigInteger.prototype.fromString=bnpFromString;BigInteger.prototype.clamp=bnpClamp;BigInteger.prototype.dlShiftTo=bnpDLShiftTo;BigInteger.prototype.drShiftTo=bnpDRShiftTo;BigInteger.prototype.lShiftTo=bnpLShiftTo;BigInteger.prototype.rShiftTo=bnpRShiftTo;BigInteger.prototype.subTo=bnpSubTo;BigInteger.prototype.multiplyTo=bnpMultiplyTo;BigInteger.prototype.squareTo=bnpSquareTo;BigInteger.prototype.divRemTo=bnpDivRemTo;BigInteger.prototype.invDigit=bnpInvDigit;BigInteger.prototype.isEven=bnpIsEven;BigInteger.prototype.exp=bnpExp;BigInteger.prototype.toString=bnToString;BigInteger.prototype.negate=bnNegate;BigInteger.prototype.abs=bnAbs;BigInteger.prototype.compareTo=bnCompareTo;BigInteger.prototype.bitLength=bnBitLength;BigInteger.prototype.mod=bnMod;BigInteger.prototype.modPowInt=bnModPowInt;BigInteger.ZERO=nbv(0);BigInteger.ONE=nbv(1);";
const char jsbn_1_js[] = "var dbits;var canary=0xdeadbeefcafe;var j_lm=((canary&0xffffff)==0xefcafe);function BigInteger(a,b,c){if(a!=null)if('number'==typeof a)this.fromNumber(a,b,c);else if(b==null&&'string'!=typeof a)this.fromString(a,256);else this.fromString(a,b);}function nbi(){return new BigInteger(null);}function am1(a,b,c,d,e,f){while(--f>=0){var g=b*this[a++]+c[d]+e;e=Math.floor(g/0x4000000);c[d++]=g&0x3ffffff;}return e;}function am2(a,b,c,d,e,f){var g=b&0x7fff,h=b>>15;while(--f>=0){var i=this[a]&0x7fff;var j=this[a++]>>15;var k=h*i+j*g;i=g*i+((k&0x7fff)<<15)+c[d]+(e&0x3fffffff);e=(i>>>30)+(k>>>15)+h*j+(e>>>30);c[d++]=i&0x3fffffff;}return e;}function am3(a,b,c,d,e,f){var g=b&0x3fff,h=b>>14;while(--f>=0){var i=this[a]&0x3fff;var j=this[a++]>>14;var k=h*i+j*g;i=g*i+((k&0x3fff)<<14)+c[d]+e;e=(i>>28)+(k>>14)+h*j;c[d++]=i&0xfffffff;}return e;}if(j_lm&&(navigator.appName=='Microsoft Internet Explorer')){BigInteger.prototype.am=am2;dbits=30;}else if(j_lm&&(navigator.appName!='Netscape')){BigInteger.prototype.am=am1;dbits=26;}else{BigInteger.prototype.am=am3;dbits=28;}BigInteger.prototype.DB=dbits;BigInteger.prototype.DM=((1<<dbits)-1);BigInteger.prototype.DV=(1<<dbits);var BI_FP=52;BigInteger.prototype.FV=Math.pow(2,BI_FP);BigInteger.prototype.F1=BI_FP-dbits;BigInteger.prototype.F2=2*dbits-BI_FP;var BI_RM='0123456789abcdefghijklmnopqrstuvwxyz';var BI_RC=new Array();var rr,vv;rr='0'.charCodeAt(0);for(vv=0;vv<=9;++vv)BI_RC[rr++]=vv;rr='a'.charCodeAt(0);for(vv=10;vv<36;++vv)BI_RC[rr++]=vv;rr='A'.charCodeAt(0);for(vv=10;vv<36;++vv)BI_RC[rr++]=vv;function int2char(a){return BI_RM.charAt(a);}function intAt(a,b){var c=BI_RC[a.charCodeAt(b)];return(c==null)?-1:c;}function bnpCopyTo(a){for(var b=this.t-1;b>=0;--b)a[b]=this[b];a.t=this.t;a.s=this.s;}function bnpFromInt(a){this.t=1;this.s=(a<0)?-1:0;if(a>0)this[0]=a;else if(a<-1)this[0]=a+this.DV;else this.t=0;}function nbv(a){var b=nbi();b.fromInt(a);return b;}function bnpFromString(a,b){var c;if(b==16)c=4;else if(b==8)c=3;else if(b==256)c=8;else if(b==2)c=1;else if(b==32)c=5;else if(b==4)c=2;else{this.fromRadix(a,b);return;}this.t=0;this.s=0;var d=a.length,e=false,f=0;while(--d>=0){var g=(c==8)?a[d]&0xff:intAt(a,d);if(g<0){if(a.charAt(d)=='-')e=true;continue;}e=false;if(f==0)this[this.t++]=g;else if(f+c>this.DB){this[this.t-1]|=(g&((1<<(this.DB-f))-1))<<f;this[this.t++]=(g>>(this.DB-f));}else this[this.t-1]|=g<<f;f+=c;if(f>=this.DB)f-=this.DB;}if(c==8&&(a[0]&0x80)!=0){this.s=-1;if(f>0)this[this.t-1]|=((1<<(this.DB-f))-1)<<f;}this.clamp();if(e)BigInteger.ZERO.subTo(this,this);}function bnpClamp(){var a=this.s&this.DM;while(this.t>0&&this[this.t-1]==a)--this.t;}function bnToString(a){if(this.s<0)return '-'+this.negate().toString(a);var b;if(a==16)b=4;else if(a==8)b=3;else if(a==2)b=1;else if(a==32)b=5;else if(a==4)b=2;else return this.toRadix(a);var c=(1<<b)-1,d,e=false,f='',g=this.t;var h=this.DB-(g*this.DB)%b;if(g-->0){if(h<this.DB&&(d=this[g]>>h)>0){e=true;f=int2char(d);}while(g>=0){if(h<b){d=(this[g]&((1<<h)-1))<<(b-h);d|=this[--g]>>(h+=this.DB-b);}else{d=(this[g]>>(h-=b))&c;if(h<=0){h+=this.DB;--g;}}if(d>0)e=true;if(e)f+=int2char(d);}}return e?f:'0';}function bnNegate(){var a=nbi();BigInteger.ZERO.subTo(this,a);return a;}function bnAbs(){return(this.s<0)?this.negate():this;}function bnCompareTo(a){var b=this.s-a.s;if(b!=0)return b;var c=this.t;b=c-a.t;if(b!=0)return(this.s<0)?-b:b;while(--c>=0)if((b=this[c]-a[c])!=0)return b;return 0;}function nbits(a){var b=1,c;if((c=a>>>16)!=0){a=c;b+=16;}if((c=a>>8)!=0){a=c;b+=8;}if((c=a>>4)!=0){a=c;b+=4;}if((c=a>>2)!=0){a=c;b+=2;}if((c=a>>1)!=0){a=c;b+=1;}return b;}function bnBitLength(){if(this.t<=0)return 0;return this.DB*(this.t-1)+nbits(this[this.t-1]^(this.s&this.DM));}function bnpDLShiftTo(a,b){var c;for(c=this.t-1;c>=0;--c)b[c+a]=this[c];for(c=a-1;c>=0;--c)b[c]=0;b.t=this.t+a;b.s=this.s;}function bnpDRShiftTo(a,b){for(var c=a;c<this.t;++c)b[c-a]=this[c];b.t=Math.max(this.t-a,0);b.s=this.s;}function bnpLShiftTo(a,b){var c=a%this.DB;var d=this.DB-c;var e=(1<<d)-1;var f=Math.floor(a/this.DB),g=(this.s<<c)&this.DM,h;for(h=this.t-1;h>=0;--h){b[h+f+1]=(this[h]>>d)|g;g=(this[h]&e)<<c;}for(h=f-1;h>=0;--h)b[h]=0;b[f]=g;b.t=this.t+f+1;b.s=this.s;b.clamp();}";
const char script_js[] = "var base_url='http://192.168.0.1/';var network_list;var public_key;var rsa=new RSAKey();var scanButton=document.getElementById('scan-button');var connectButton=document.getElementById('connect-button');var copyButton=document.getElementById('copy-button');var showButton=document.getElementById('show-button');var deviceID=document.getElementById('device-id');var connectForm=document.getElementById('connect-form');var public_key_callback={success:function(a){console.log('Public key: '+a.b);public_key=a.b;rsa.setPublic(public_key.substring(58,58+256),public_key.substring(318,318+6));},error:function(a,b){console.log(a);window.alert('There was a problem fetching important information from your device. Please verify your connection, then reload this page.');}};var device_id_callback={success:function(a){var b=a.id;deviceID.value=b;},error:function(a,b){console.log(a);var c='COMMUNICATION_ERROR';deviceID.value=c;}};var scan=function(){console.log('Scanning...!');disableButtons();scanButton.innerHTML='Scanning...';connectButton.innerHTML='Connect';document.getElementById('connect-div').style.display='none';document.getElementById('networks-div').style.display='none';getRequest(base_url+'scan-ap',scan_callback);};var scan_callback={success:function(a){network_list=a.scans;console.log('I found:');var b=document.getElementById('networks-div');b.innerHTML='';if(network_list.length>0)for(var c=0;c<network_list.length;c++){ssid=network_list[c].ssid;console.log(network_list[c]);add_wifi_option(b,ssid);document.getElementById('connect-div').style.display='block';}else b.innerHTML='<p class=\\'scanning-error\\'>No networks found.</p>';},error:function(a){console.log('Scanning error:'+a);document.getElementById('networks-div').innerHTML='<p class=\\'scanning-error\\'>Scanning error.</p>';},regardless:function(){scanButton.innerHTML='Re-Scan';enableButtons();document.getElementById('networks-div').style.display='block';}};var configure=function(a){a.preventDefault();var b=get_selected_network();var c=document.getElementById('password').value;if(!b){window.alert('Please select a network!');return false;}var d={idx:0,ssid:b.ssid,pwd:rsa.encrypt(c),sec:b.sec,ch:b.ch};connectButton.innerHTML='Sending credentials...';disableButtons();console.log('Sending credentials: '+JSON.stringify(d));postRequest(base_url+'configure-ap',d,configure_callback);};var configure_callback={success:function(a){console.log('Credentials received.');connectButton.innerHTML='Credentials received...';postRequest(base_url+'connect-ap',{idx:0},connect_callback);},error:function(a,b){console.log('Configure error: '+a);window.alert('The configuration command failed, check that you are still well connected to the device\\'s WiFi hotspot and retry.');connectButton.innerHTML='Retry';enableButtons();}};var connect_callback={success:function(a){console.log('Attempting to connect to the cloud.');connectButton.innerHTML='Attempting to connect...';window.alert('Your device should now start flashing green and attempt to connect to the cloud. This usually takes about 20 seconds, after which it will begin slowly blinking cyan. \\n\\n\\nIf this process fails because you entered the wrong password, the device will flash green indefinitely. In this case, hold the setup button for 6 seconds until the device starts blinking blue again. Then reconnect to the WiFi hotspot it generates and reload this page to try again.');},error:function(a,b){console.log('Connect error: '+a);window.alert('The connect command failed, check that you are still well connected to the device\\'s WiFi hotspot and retry.');connectButton.innerHTML='Retry';enableButtons();}};var disableButtons=function(){connectButton.disabled=true;scanButton.disabled=true;};var enableButtons=function(){connectButton.disabled=false;scanButton.disabled=false;};var add_wifi_option=function(a,b){var c=document.createElement('INPUT');c.type='radio';c.value=b;c.id=b;c.name='ssid';c.className='radio';var d=document.createElement('DIV');d.className='radio-div';d.appendChild(c);var e=document.createElement('label');e.htmlFor=b;e.innerHTML=b;d.appendChild(e);a.appendChild(d);};var get_selected_network=function(){for(var a=0;a<network_list.length;a++){ssid=network_list[a].ssid;if(document.getElementById(ssid).checked)return network_list[a];}};var copy=function(){window.prompt('Copy to clipboard: Ctrl + C, Enter',deviceID.value);};var toggleShow=function(){var a=document.getElementById('password');inputType=a.type;if(inputType==='password'){showButton.innerHTML='Hide';a.type='text';}else{showButton.innerHTML='Show';a.type='password';}};var getRequest=function(a,b){var c=new XMLHttpRequest();c.open('GET',a,true);c.timeout=8000;c.send();c.onreadystatechange=function(){if(c.readyState==4)if(b){if(c.status==200){if(b.success)b.success(JSON.parse(c.responseText));}else if(b.error)b.error(c.status,c.responseText);if(b.regardless)b.regardless();}};};var postRequest=function(a,b,c){var d=JSON.stringify(b);var e=new XMLHttpRequest();e.open('POST',a,true);e.timeout=4000;e.setRequestHeader('Content-Type','multipart/form-data');e.send(d);e.onreadystatechange=function(){if(e.readyState==4)if(c){if(e.status==200){if(c.success)c.success(JSON.parse(e.responseText));}else if(c.error)c.error(e.status,e.responseText);if(c.regardless)c.regardless();}};};if(scanButton.addEventListener){copyButton.addEventListener('click',copy);showButton.addEventListener('click',toggleShow);scanButton.addEventListener('click',scan);connectForm.addEventListener('submit',configure);}else if(scanButton.attachEvent){copyButton.attachEvent('onclick',copy);showButton.attachEvent('onclick',toggleShow);scanButton.attachEvent('onclick',scan);connectForm.attachEvent('onsubmit',configure);}getRequest(base_url+'device-id',device_id_callback);getRequest(base_url+'public-key',public_key_callback);";
const char prng4_js[] = "function Arcfour(){this.i=0;this.j=0;this.S=new Array();}function ARC4init(a){var b,c,d;for(b=0;b<256;++b)this.S[b]=b;c=0;for(b=0;b<256;++b){c=(c+this.S[b]+a[b%a.length])&255;d=this.S[b];this.S[b]=this.S[c];this.S[c]=d;}this.i=0;this.j=0;}function ARC4next(){var a;this.i=(this.i+1)&255;this.j=(this.j+this.S[this.i])&255;a=this.S[this.i];this.S[this.i]=this.S[this.j];this.S[this.j]=a;return this.S[(a+this.S[this.i])&255];}Arcfour.prototype.init=ARC4init;Arcfour.prototype.next=ARC4next;function prng_newstate(){return new Arcfour();}var rng_psize=256;";
Page myPages[] = {
{ "/index.html", "text/html", index_html },
{ "/rsa-utils/rsa.js", "application/javascript", rsa_js },
{ "/style.css", "text/css", style_css },
{ "/rsa-utils/rng.js", "application/javascript", rng_js },
{ "/rsa-utils/jsbn_2.js", "application/javascript", jsbn_2_js },
{ "/rsa-utils/jsbn_1.js", "application/javascript", jsbn_1_js },
{ "/script.js", "application/javascript", script_js },
{ "/rsa-utils/prng4.js", "application/javascript", prng4_js },
{ nullptr }
};
void myPage(const char* url, ResponseCallback* cb, void* cbArg, Reader* body, Writer* result, void* reserved)
{
Serial.printlnf("handling page %s", url);
if (strcmp(url,"/index")==0) {
Serial.println("sending redirect");
Header h("Location: /index.html\r\n");
cb(cbArg, 0, 301, "text/plain", &h);
return;
}
int8_t idx = 0;
for (;;idx++) {
Page& p = myPages[idx];
if (!p.url) {
idx = -1;
break;
}
else if (strcmp(url, p.url)==0) {
break;
}
}
if (idx==-1) {
cb(cbArg, 0, 404, nullptr, nullptr);
}
else {
cb(cbArg, 0, 200, myPages[idx].mime_type, nullptr);
result->write(myPages[idx].data);
}
}
STARTUP(startupFunction());
void startupFunction(){
softap_set_application_page_handler(myPage, nullptr);
WiFi.selectAntenna(ANT_INTERNAL);//ANT_INTERNAL ANT_EXTERNAL
}
// Press SETUP for 3 seconds to make the Photon enter Listening mode
// Navigate to http://192.168.0.1 to setup Wi-Fi
// Include the rest of your application below,
// including your setup and loop functions
//*************************************************************************************************************
// This #include statement was automatically added by the Particle IDE.
#include "TimeAlarms.h"
#include <Adafruit_SSD1306.h>
#include "Encoder.h"
#include <blynk.h>
char auth[] = "25f47fef50764cde93d26b3f88bd07a6";
//BL_Purple_DC: 25f47fef50764cde93d26b3f88bd07a6
//BL_White_DC: 2fae30f16e5c4386a4c42be2f414b940
//BL_Green_DC: d385b666ef3b4cfd88ff08fe75b4e64c
//BL_Green_DC_X: 3f23abd0024b4501a5373907e8ab2849
SYSTEM_THREAD(ENABLED);
#define OLED_RESET 6
Adafruit_SSD1306 oled(OLED_RESET);//make a screen object
// Change these two numbers to the pins connected to your encoder.
// Both pins must have interrupt capability
Encoder myEnc(A3, A1);// Create Encoder object
// avoid using pins with LEDs attached
BlynkTimer timer; // Create SimpleTimer Object
long oldPosition = 27;
long newPosition = 28;
double bottomNumber, negativeBottomNumber, topNumber, averageNumber;
//Motor A
int PWMA = A4; //Speed control
int AIN1 = D2; //Direction
int AIN2 = D3; //Direction
int STBY = D5; //standby
int RELAY = D4; // Relay
int microSwitch = D7; //Micro Switch
int analogOut = DAC; // Analog output to 4-20mA
int runCount = 0;
int alarm1, alarm2, alarm3, alarm4, alarm5, alarm6, alarm7, alarm8, alarm9, alarm10, alarm11, alarm12, alarm13, alarm14;
bool msPos = FALSE; //microswitch position
bool countingUpFirstStage = TRUE;
bool countingUpSecondStage = TRUE;
int timerID = 0;
int runMeasurement(String command);//register Particle Function
bool cloudCommand = 0;
double inches = 0;
int percentFull = 0;
String timeStamp = "";
String notifyString = "";
int binHeight = 0;
int measuring = 0;
bool scheduledMeasurement = FALSE;
byte mac[6];
int timedRunEnabled = 0;
bool timedRun = FALSE;
int runEvery = 5;
int timedRunTimerID = 0;
double relayOnAt = 90;
WidgetLED led1(V2);//LED Widget for Blynk.
//WidgetLCD lcd(V11);//LCD Widget for Blynk.
void move(int motor, int speed, int direction){
//Move specific motor at speed and direction
//motor: 0 for B 1 for A
//speed: 0 is off, and 255 is full speed
//direction: 0 clockwise, 1 counter-clockwise
digitalWrite(STBY, HIGH); //disable standby
boolean inPin1 = LOW;
boolean inPin2 = HIGH;
if(direction == 1){
inPin1 = HIGH;
inPin2 = LOW;
}
digitalWrite(AIN1, inPin1);
digitalWrite(AIN2, inPin2);
analogWrite(PWMA, speed);
}//Move Motor.
void zeroCounter(){ newPosition = 0; myEnc.write(0); }
void reverseFull(){ move(1, 255, 0); }//changed to 150.. change back for production.......
void forewardFull(){ move(1, 255, 1); }
void reverseHalf(){ move(1, 128, 0); }
void forewardHalf(){ move(1, 128, 1); }
void relayOn(){ digitalWrite(RELAY, HIGH); }
void relayOff(){ digitalWrite(RELAY, LOW); }
void takeMeasurement(){
measuring = 1;
Particle.publish("takingM", String(measuring), 360, PRIVATE);
printMeasuringToOLED();
oled.display();
led1.on();
lowerWeight();
}
void takeScheduledMeasurement(){
measuring = 1;
Particle.publish("takingM", String(measuring), 360, PRIVATE);
scheduledMeasurement = TRUE;
printMeasuringToOLED();
oled.display();
led1.on();
lowerWeight();
}
void takeTimedMeasurement(){
measuring = 1;
Particle.publish("takingM", String(measuring), 360, PRIVATE);
timedRun = TRUE;
printMeasuringToOLED();
oled.display();
led1.on();
lowerWeight();
}
void lowerWeight(){// zero out counter and lower weight, slow at first till switch is triggered. Store Pulses to Bottom in a varialbe
zeroCounter();
bottomNumber = 0;
msPos = digitalRead(microSwitch);
// Particle.publish("MS:", String(msPos) );
for (int i=0; i <= 255; i++){
move(1,i,0);
delay(4);
}
while (msPos){
newPosition = myEnc.read();
reverseFull();
msPos = digitalRead(microSwitch);
}
bottomNumber = newPosition;
raiseWeight();
}
int raiseWeight(){//zero counter and raise weight till it's 1500 pulses from the top then slow it down and stop the motor when pulses stop
zeroCounter();
topNumber = 0;
negativeBottomNumber = (bottomNumber * -1) - -2000;
for (int i=0; i <= 255; i++){
move(1,i,1);
delay(4);
}
countingUpSecondStage = TRUE;
//Keep reeling while the encoder is counting.
while (countingUpSecondStage){
newPosition = myEnc.read();
if (newPosition < negativeBottomNumber){
forewardHalf();
if (newPosition == oldPosition){
countingUpSecondStage = FALSE;
}
}
delay(20);
oldPosition = newPosition;
}
//*******************************Cleanup***************************************
topNumber = newPosition;
//Stop Motor
for (int i=255; i == 0; i--){
move(1,i,1);
delay(1);
}
digitalWrite(STBY, LOW); //enable standby
//Particle.publish("Final TN", String(topNumber));
//Particle.publish("Final BN", String(bottomNumber));
led1.off();
averageNumber = ((topNumber * -1) + bottomNumber ) / 2;//Get the Average of Down and Up Counts
//Particle.publish("Average", String(averageNumber), PRIVATE);*********************************************************************************************************
averageNumber = (averageNumber / 23.87) * .039; //average number / 15.91 or 16.11 pulses per mm Multiply by .039 to convert to inches. (15.91 ppmm for 400PPR (actual 1600) Encoder 23.87 or23.17 ppmm for 600PPR (actual 1600) Encoder
inches = averageNumber;
percentFull = 100 - ((100 / binHeight) * inches);
analogWrite(analogOut, (4096 - (4096 / binHeight) * inches) );//writes analog value to pin 6 or DAC for 4-20mA output.
Particle.publish("inches", String(inches), PRIVATE);
timeStamp = ( String(Time.month()) + "/" + String(Time.day()) + "/" + String(Time.year()) + " " + String(Time.hourFormat12()) + ":" + String(Time.minute()) + (Time.isAM() ? ("AM") : ("PM")) ) ;
Particle.publish("measureTime", timeStamp, PRIVATE);
if(scheduledMeasurement){
scheduledMeasurement = FALSE;
notifyString = "Bin Level is " + String(100 - ((100 / binHeight) * inches) ) + "% full.";
Blynk.notify(notifyString);
}
if (timedRun){
timedRun = FALSE;
}
//Particle.publish("PercFull", String(percentFull), 60, PRIVATE);
measuring = 0;
printInchesToOled();
runCount += 1;
EEPROM.put(10, runCount);
oled.display();
Particle.publish("takingM", String(measuring), 360, PRIVATE);
return inches;
}
void printMeasuringToOLED(){
oled.clearDisplay();
oled.setTextSize(2);
oled.setTextColor(WHITE);
oled.setCursor(0,0);
oled.print("Measuring...");
}
void printInchesToOled(){
oled.clearDisplay();
oled.setTextSize(2);
oled.setTextColor(WHITE);
oled.setCursor(0,0);
oled.print("Inch= ");
oled.print(inches);
oled.setCursor(0,16);
oled.print(String(Time.month()) + "/" + String(Time.day()) + "/" + String(Time.year()));
oled.setCursor(0,32);
//char minute[3][2] = {"%3d", String(Time.minute())};
oled.print(String(Time.hour()) + ":" + String(Time.minute()) + ((Time.isAM()) ? ("AM") : ("PM")) );
oled.setCursor(0,48);
oled.print("Run #:");
oled.print(String(runCount));
}
int runMeasurement(String command){
if (command == "1"){
cloudCommand = 1;
return 1;
}
else {
cloudCommand == 0;
return -1;
}
}
/*void button_clicked(system_event_t event, int param)
{
int times = system_button_clicks(param);
if (times == 1){
takeMeasurement();
}
//Serial.printlnf("button was clicked %d times", times);
}
*/
//STARTUP( WiFi.selectAntenna(ANT_EXTERNAL) );//uncomment this line for External Antenna.....
void setup() {
//Particle.connect();
Particle.function("takeM", runMeasurement);// take measurement
Particle.variable("inches", inches);//Measurement in Inches.
Particle.variable("measureTime", timeStamp);//Time the measurement was taken
Particle.variable("takingM", measuring);// tells us if a measurement is in progress.
Particle.variable("timedRun", timedRunEnabled);// lets us now if timed run is enabled...
Particle.variable("runEvery", runEvery);//run every how many minutes?
Serial.begin(9600);
Blynk.begin(auth, IPAddress(45,55,130,102), 8442);//Start Connection to Blynk Servers
// System.on(button_click, button_clicked);//listen for Setup button clicks.
pinMode(STBY, OUTPUT);
pinMode(PWMA, OUTPUT);
pinMode(AIN1, OUTPUT);
pinMode(AIN2, OUTPUT);
pinMode(RELAY, OUTPUT);
pinMode(analogOut, OUTPUT);//4-20mA output
pinMode(microSwitch, INPUT_PULLUP);
relayOff();
oled.begin(SSD1306_SWITCHCAPVCC, 0x3C); // initialize with the I2C addr 0x3D (for the 128x64)
oled.display();//display splash screen?
Time.zone(-5);//Set the Time Zone. Offset from
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