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The foundation of this project was my previous one (https://www.hackster.io/timschmitztim/binary-clock-360ba8#overview) but it wasn't nice to look at which is why I designed a custom case with the silhouette of sights in Luxembourg. Just follow the steps below to build your own:
1. LED stripes:
The Kniwwelino has to be connected to the LED stripes first. To do that the wires have to be soldered to the ports shown in the pictures.
!!! Make sure to solder the input wires on the wright side of the stripe (look at the arrows on the stripe in the picture). Otherwise it won't work. !!!
The LED stripes have to be serially connected starting with the two on the left. Just use the other side of a stripe as output and solder it to the input of the next one. The wires between two parts have to measure roughly 8 cm (3, 15 in).
1 / 2 • used ports on the Kniwwelino
If you want it to look even better you can also solder a micro-USB port to the circuit.
without external micro-USB port
2. program:
Afterward you should test if everything is working. My code can be downloaded down below at the code section. As you can see in the programm I used port D5 to connect the stripes which means you need to change it if you solder the wire to another port.
The calculations for the binary clock are explained in my previous project "binary clock" (https://www.hackster.io/timschmitztim/binary-clock-360ba8#overview). The program is basically the same with the difference of the matrix being only 4 LED's high instead of 5 on the Kniwwelino which is why less "fill pixels" are needed. I also added a block displaying the time in decimal figures on the matrix of the Kniwwelino.
program
3. design:
I drew a rough sketch of the silhouette of sights in Luxembourg (svg-files in the code section) but if you want to have another skyline just copy the holes for the LED's and lay them above a sketch of your choice.
sketch
I first engraved it into 2mm cardboard to see what it looks like in reality and whether all parts fit in. I used the Mr Beam II to do that.
1 / 3 • test engraving
4. production:
Firstly you need to laser cut and engrave the parts into a material of your choice. I used plywood.
1 / 2 • Mr Beam II during a cutting job
Then drill a hole through the front underneath the position of the Kniwwelino and put the wires coming from the Kniwwelino through it. Afterward you can stick the LED stripes to the back of the front panel.
wired stand
Next you assemble the case as you can see below. The spacer can be glued between the front and back panel if needed
assemble the case like this
Now just wait until the glue is dry and plug it in to see what your's looks like.
final product
binary clock
XMLThis is the program created by the blocks from the pictures. Please open the file on https://code.kniwwelino.lu to upload it to your Kniwwelino or adjust it.
<xml xmlns="http://www.w3.org/1999/xhtml">
<block type="arduino_functions_setup" id="DDtcZNak{t!S{nczqmR(" x="40" y="40">
<statement name="SETUP_FUNC">
<block type="kniwwelino_MATRIXdrawIcon" id="=.RR[`ypeMF_(mecsoBd">
<value name="ICON">
<block type="kniwwelino_MATRIXdrawIconCreator" id="x1ogMV,t/kD1I@9L4bS7">
<field name="1_1">FALSE</field>
<field name="1_2">TRUE</field>
<field name="1_3">FALSE</field>
<field name="1_4">TRUE</field>
<field name="1_5">FALSE</field>
<field name="2_1">TRUE</field>
<field name="2_2">TRUE</field>
<field name="2_3">TRUE</field>
<field name="2_4">TRUE</field>
<field name="2_5">TRUE</field>
<field name="3_1">FALSE</field>
<field name="3_2">TRUE</field>
<field name="3_3">TRUE</field>
<field name="3_4">TRUE</field>
<field name="3_5">FALSE</field>
<field name="4_1">TRUE</field>
<field name="4_2">TRUE</field>
<field name="4_3">TRUE</field>
<field name="4_4">TRUE</field>
<field name="4_5">TRUE</field>
<field name="5_1">FALSE</field>
<field name="5_2">TRUE</field>
<field name="5_3">FALSE</field>
<field name="5_4">TRUE</field>
<field name="5_5">FALSE</field>
</block>
</value>
<next>
<block type="kniwwelino_sleepsec" id="C0w/e1*m7@H,Pw?KK~n^">
<value name="DELAY_TIME_SEC">
<shadow type="math_number" id="7!c2#uX6}x*S9!4Ddo7z">
<field name="NUM">3</field>
</shadow>
</value>
</block>
</next>
</block>
</statement>
</block>
<block type="procedures_defnoreturn" id="8-rTIZdeD*XA4LACsm!n" x="684" y="15">
<field name="NAME">get time</field>
<comment pinned="false" h="80" w="160">Describe the function...</comment>
<statement name="STACK">
<block type="variables_set" id="SL,5rLxfhZY:^sn#oH_v">
<field name="VAR">fulltime</field>
<value name="VALUE">
<block type="kniwwelino_getTimeInt" id="-A3gyq%okPw9J`{NwW.%">
<field name="FORMAT">HOUR</field>
</block>
</value>
<next>
<block type="variables_set" id="{}R)dOYR|`K+u.kr4LOL">
<field name="VAR">hours</field>
<value name="VALUE">
<block type="math_modulo" id="azVW}FPl!_g*2[.IbCZ*">
<value name="DIVIDEND">
<block type="variables_get" id="uLd+~C6+pIykyY4eP*Sh">
<field name="VAR">fulltime</field>
</block>
</value>
<value name="DIVISOR">
<block type="math_number" id="H9y7XRVY?fg^^Y?`egY{">
<field name="NUM">10</field>
</block>
</value>
</block>
</value>
<next>
<block type="variables_set" id="ni7#_bua^Hon3^a]Zi^+">
<field name="VAR">tenhours</field>
<value name="VALUE">
<block type="math_arithmetic" id="P^@M;h:C|[|HG|lU7K(G">
<field name="OP">DIVIDE</field>
<value name="A">
<block type="math_arithmetic" id="{XbmkQmIYPPoS:u6jvVH">
<field name="OP">MINUS</field>
<value name="A">
<block type="variables_get" id="6,yj=k]e3=o.=8Bl}i98">
<field name="VAR">fulltime</field>
</block>
</value>
<value name="B">
<block type="variables_get" id="]{/[/?)YbX4Hw_f%1mh.">
<field name="VAR">hours</field>
</block>
</value>
</block>
</value>
<value name="B">
<block type="math_number" id="|]*(]x1n3be?M0*Kz%Dj">
<field name="NUM">10</field>
</block>
</value>
</block>
</value>
<next>
<block type="variables_set" id="+y#Iif;}9dw6@1v6nE3F">
<field name="VAR">fullminutes</field>
<value name="VALUE">
<block type="kniwwelino_getTimeInt" id="KM;20(hl_FWy.,xMQJRG">
<field name="FORMAT">MINUTE</field>
</block>
</value>
<next>
<block type="variables_set" id="#|HlGU~3uJ?8/q~s^FW9">
<field name="VAR">minutes</field>
<value name="VALUE">
<block type="math_modulo" id="C7YL%-fv{xD%Q^ki{l~W">
<value name="DIVIDEND">
<block type="variables_get" id="Z,{IrsE@5+(`+rFc/n}6">
<field name="VAR">fullminutes</field>
</block>
</value>
<value name="DIVISOR">
<block type="math_number" id="Y2dXl}KF}oq5FAD(lhTl">
<field name="NUM">10</field>
</block>
</value>
</block>
</value>
<next>
<block type="variables_set" id="bT*qAgTykHbi6e*a2h4X">
<field name="VAR">tenminutes</field>
<value name="VALUE">
<block type="math_arithmetic" id="1~cGemVU);qG*0WuBc^J">
<field name="OP">DIVIDE</field>
<value name="A">
<block type="math_arithmetic" id="[gU++I-N2sU0D)0ORu@s">
<field name="OP">MINUS</field>
<value name="A">
<block type="variables_get" id="~07G4ZnG4js1A`56GgLs">
<field name="VAR">fullminutes</field>
</block>
</value>
<value name="B">
<block type="variables_get" id="-ea[M~DTt%_@.1vK~H~5">
<field name="VAR">minutes</field>
</block>
</value>
</block>
</value>
<value name="B">
<block type="math_number" id="y3`yXVrh!zA`jHJppD1g">
<field name="NUM">10</field>
</block>
</value>
</block>
</value>
</block>
</next>
</block>
</next>
</block>
</next>
</block>
</next>
</block>
</next>
</block>
</statement>
</block>
<block type="arduino_functions_loop" id="V*pfkkG8`?W.rRPEE!FG" x="41" y="288">
<statement name="LOOP_FUNC">
<block type="variables_set" id="]FK.VeKSUf+q8~z|flZT">
<field name="VAR">buffer</field>
<value name="VALUE">
<block type="math_number" id=";uDWh6#cW[M?ctU}*O=E">
<field name="NUM">0</field>
</block>
</value>
<next>
<block type="procedures_callnoreturn" id="ovfLMcXKh.Y/+E%sXYQb">
<mutation name="get time"></mutation>
<next>
<block type="variables_set" id="qBhBKo~7NVG`@5`~O070">
<field name="VAR">solution</field>
<value name="VALUE">
<block type="variables_get" id="Z^b@0rrGKbLw1GNGx[g`">
<field name="VAR">tenhours</field>
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</value>
<next>
<block type="procedures_callnoreturn" id="w)a+40ZT;484o/c|m-/?">
<mutation name="to binary"></mutation>
<next>
<block type="variables_set" id="fD1C)jzgc](TKcH;b~z9">
<field name="VAR">buffer</field>
<value name="VALUE">
<block type="math_number" id="FyQbd|q7Q{buSj:+TN1t">
<field name="NUM">2</field>
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</value>
<next>
<block type="variables_set" id="%=E{2`]*UKll2?Y0K:{a">
<field name="VAR">solution</field>
<value name="VALUE">
<block type="variables_get" id="r#@Lh0EFr8jZ^R1,+q(/">
<field name="VAR">hours</field>
</block>
</value>
<next>
<block type="procedures_callnoreturn" id="SHhqm,3C@@3@HUQGf;oV">
<mutation name="to binary"></mutation>
<next>
<block type="variables_set" id="H1Hb:IVRbrt!Q.2s!/G4">
<field name="VAR">solution</field>
<value name="VALUE">
<block type="variables_get" id="Aysr6mT_A:68HxfDWWft">
<field name="VAR">tenminutes</field>
</block>
</value>
<next>
<block type="procedures_callnoreturn" id="nU`m^hSAKj3}~/W,??c;">
<mutation name="to binary"></mutation>
<next>
<block type="variables_set" id="mQQ1|_}ScJLi?4ad6GRS">
<field name="VAR">solution</field>
<value name="VALUE">
<block type="variables_get" id="H7LUMek8!X6H|[/5.(]i">
<field name="VAR">minutes</field>
</block>
</value>
<next>
<block type="procedures_callnoreturn" id="TS[~mXNF/qU~]A=%Z7|8">
<mutation name="to binary"></mutation>
<next>
<block type="kniwwelino_MATRIXwrite" id="Z)Ctv92PC_A}%E.]x6~?">
<field name="TYPE">SCROLL</field>
<value name="TEXT">
<shadow type="text" id="k-~R]x5i%nwQd!~;t,RU">
<field name="TEXT">Hello Kniwwelino</field>
</shadow>
<block type="text_join" id="VW.Ah?hSOhzga5E)2A/~">
<mutation items="3"></mutation>
<value name="ADD0">
<block type="variables_get" id="((a(|Wv;B(M|1-,g5;xb">
<field name="VAR">fulltime</field>
</block>
</value>
<value name="ADD1">
<block type="text" id="PgvBn1H^+NGC;(rki=[G">
<field name="TEXT">:</field>
</block>
</value>
<value name="ADD2">
<block type="variables_get" id="nmu,hZz-rHPHUq3:(FTP">
<field name="VAR">fullminutes</field>
</block>
</value>
</block>
</value>
<next>
<block type="kniwwelino_sleep" id="USI.bsv{_HjXI3|u6mee">
<value name="DELAY_TIME_MILI">
<shadow type="math_number" id="NHg_mbw|jS72WHo0P*i5">
<field name="NUM">200</field>
</shadow>
</value>
</block>
</next>
</block>
</next>
</block>
</next>
</block>
</next>
</block>
</next>
</block>
</next>
</block>
</next>
</block>
</next>
</block>
</next>
</block>
</next>
</block>
</next>
</block>
</next>
</block>
</statement>
</block>
<block type="procedures_defnoreturn" id="ltqfT]vU=,]j))#XD@`h" x="690" y="303">
<field name="NAME">to binary</field>
<comment pinned="false" h="80" w="160">Describe the function...</comment>
<statement name="STACK">
<block type="variables_set" id="V_;UXlwbX{vqAK}M%HmN">
<field name="VAR">i</field>
<value name="VALUE">
<block type="math_number" id="sMn:,wLfOO(?:O!W+2NJ">
<field name="NUM">0</field>
</block>
</value>
<next>
<block type="controls_whileUntil" id=":Fe=wGg)M@4z1r[L=Up9">
<field name="MODE">UNTIL</field>
<value name="BOOL">
<block type="logic_compare" id="eMuT9XkbHXqn_)^8gyne">
<field name="OP">EQ</field>
<value name="A">
<block type="variables_get" id="31=lcU=APP?PE?)9Zr+A">
<field name="VAR">solution</field>
</block>
</value>
<value name="B">
<block type="math_number" id=")uY-jqbF^Nja}vH)Yrkj">
<field name="NUM">0</field>
</block>
</value>
</block>
</value>
<statement name="DO">
<block type="variables_set" id="CCR5S]DnrBOVU`b%ziUo">
<field name="VAR">nextDigit</field>
<value name="VALUE">
<block type="math_modulo" id="0gd%mldr[!1qgMRbOl~w">
<value name="DIVIDEND">
<block type="variables_get" id="xq3Y2eTL-IT}bA#:RZca">
<field name="VAR">solution</field>
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</value>
<value name="DIVISOR">
<block type="math_number" id="Oqf?Wmv@sk4K=8({s#~0">
<field name="NUM">2</field>
</block>
</value>
</block>
</value>
<next>
<block type="variables_set" id="WAKt!qhJ3;U-`U8mVb(B">
<field name="VAR">solution</field>
<value name="VALUE">
<block type="math_arithmetic" id="Vsl)[_OxuO?_~8Auj-KQ">
<field name="OP">DIVIDE</field>
<value name="A">
<block type="variables_get" id="T{3^rs?/L!|,{_4N])o@">
<field name="VAR">solution</field>
</block>
</value>
<value name="B">
<block type="math_number" id="3.AM/)iJ~{UX.)~fix.!">
<field name="NUM">2</field>
</block>
</value>
</block>
</value>
<next>
<block type="controls_if" id="y070uN:f[pe(,f.VoYv0">
<mutation else="1"></mutation>
<value name="IF0">
<block type="variables_get" id="w9]raNMRf9c8NsqAazxU">
<field name="VAR">nextDigit</field>
</block>
</value>
<statement name="DO0">
<block type="kniwwelino_neopixelsetPixelColorFromString" id="YiKzzD^/R1hNFbJVs5N^">
<value name="PIXEL">
<shadow type="math_number" id="cdaP#`JDDka:DQlQ:YNS">
<field name="NUM">0</field>
</shadow>
<block type="variables_get" id="xo)YM/`1icT=g5a15+zf">
<field name="VAR">buffer</field>
</block>
</value>
<value name="COLOR">
<shadow type="kniwwelino_RGBselectColor" id="zx^/PQ,_044JPcR3L!}^">
<field name="COLOR">#00FF00</field>
</shadow>
</value>
</block>
</statement>
<statement name="ELSE">
<block type="kniwwelino_neopixelsetPixelColorFromString" id="_P0k+q+1rjEv2xj]kcs?">
<value name="PIXEL">
<shadow type="math_number" id="|gSud|f[gH(XkVZu#7Vy">
<field name="NUM">0</field>
</shadow>
<block type="variables_get" id="`0mdZ{#_lWG59-Y#)+I/">
<field name="VAR">buffer</field>
</block>
</value>
<value name="COLOR">
<shadow type="kniwwelino_RGBselectColor" id="`ACfl}9SJG_DGiLJ,SDh">
<field name="COLOR">#00FF00</field>
</shadow>
<block type="text" id="Z_J,Y6Tt11eqqlRa0N/7">
<field name="TEXT">0000FF</field>
</block>
</value>
</block>
</statement>
<next>
<block type="math_change" id="2pcwXA7|C99wJ2}+!L],">
<field name="VAR">i</field>
<value name="DELTA">
<block type="math_number" id="wMWx(}0w@[NC0[fNTiW4">
<field name="NUM">1</field>
</block>
</value>
<next>
<block type="math_change" id="[sBt#,GnxNe5S;4d=?gW">
<field name="VAR">buffer</field>
<value name="DELTA">
<block type="math_number" id="{|I(@{[3(SRI,{|A4p*X">
<field name="NUM">1</field>
</block>
</value>
</block>
</next>
</block>
</next>
</block>
</next>
</block>
</next>
</block>
</statement>
<next>
<block type="controls_if" id=")!ovm79whx(US-i#1e!D">
<value name="IF0">
<block type="logic_compare" id="lj8Ul]{BpcCXe;^@Bd5F">
<field name="OP">LT</field>
<value name="A">
<block type="variables_get" id="VX2guOizDV%EHV22{~o(">
<field name="VAR">i</field>
</block>
</value>
<value name="B">
<block type="math_number" id="S*O3`T4n+x^@f~G*Eco%">
<field name="NUM">4</field>
</block>
</value>
</block>
</value>
<statement name="DO0">
<block type="controls_for" id="7Bca9g9vYgyL#Yt5J*{J">
<field name="VAR">j</field>
<value name="FROM">
<block type="variables_get" id=")+9eRWM6zKix9PuJG?.m">
<field name="VAR">i</field>
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</value>
<value name="TO">
<block type="math_number" id=",E_JH@xCeEID[:N5Zc_v">
<field name="NUM">3</field>
</block>
</value>
<value name="BY">
<block type="math_number" id="z}*,e?#y{hxrqom=QQf5">
<field name="NUM">1</field>
</block>
</value>
<statement name="DO">
<block type="kniwwelino_neopixelsetPixelColorFromString" id="L/@||Bq0.6XiHIh74}3c">
<value name="PIXEL">
<shadow type="math_number" id="|gSud|f[gH(XkVZu#7Vy">
<field name="NUM">0</field>
</shadow>
<block type="variables_get" id="^Q3_=}TdVBGXUP=Uq(np">
<field name="VAR">buffer</field>
</block>
</value>
<value name="COLOR">
<shadow type="kniwwelino_RGBselectColor" id="`ACfl}9SJG_DGiLJ,SDh">
<field name="COLOR">#00FF00</field>
</shadow>
<block type="text" id="oE@@)yazTU}?n4Q}LT;2">
<field name="TEXT">FF0000</field>
</block>
</value>
<next>
<block type="math_change" id="p:0b?jL;~O]cmB5#*Bf:">
<field name="VAR">buffer</field>
<value name="DELTA">
<block type="math_number" id="XN1bz+q?Xk:H4R9wruGX">
<field name="NUM">1</field>
</block>
</value>
</block>
</next>
</block>
</statement>
</block>
</statement>
</block>
</next>
</block>
</next>
</block>
</statement>
</block>
<block type="kniwwelino_neopixelInit" id="Un?a/h9-0%|,ty=6m}8L" x="-59" y="785">
<field name="SIZE">14</field>
<field name="PIN">D5</field>
</block>
</xml>
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