User:Danspencer101/Sandbox

Robot Badge
Primary Contact	Chunky
Created	24/05/2013
Completed	27/05/2013
Dormant	{{{dormantdate}}}
Version	{{{version}}}
Members	{{{members}}}
Manufacturer	{{{manufacturer}}}
Model	{{{model}}}
Location	[[{{{location}}}]]
GitHub / Repo	{{{repo}}}
Status	Complete
Type	Workshop Activity
Live Status	{{{livestatus}}}
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Overview

These are notes and files relating to the 'Learn To Solder' Robot Badge. This badge kit has been produced to use at events as a simple soldering exercise and promote the hackspace. This badge was based upon a simple flashing LED badge that was seen at UK Maker Faire 2011 in Newcastle. This robot shaped badge was designed by Matt Little based on an idea by Rob Keating from PCB manufacturers, Beta Layout. Beta Layout produced a number of batches of these PCBs for Nottingham Hackspace.

Robot/Round Badge

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• File:Spread out the parts: PCB, LED, Battery Holder, Battery, Pin, Clasp
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• File:Apply a small amount of sodler to the battery pad. This raises the pad so it makes a good connection to the battery
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• File:Put the PCB on the edge of a table and place the pin through. Solder the pin
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• File:Solder the LED. Make sure the LED is the correct orientation. The long lead is positive and fits in the hole with the + symbol.
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• File:Push the battery clip into the back of the PCB. Make sure the open side is facing downwards so the battery can fit in.
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• File:Push the battery in with the + side face up. And hopefully you should have a flashing badge...
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SMD Robot Badge

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Parts List - Simple

The simple version of the badge is just an LED wired derectly with a battery. A colour changing LED is used to make it a bit more interesting.

Part	Details	Supplier
3V Battery	CR2032	eBay 1 Cost: £10 for 100 eBay 2 Cost: £10 for 100
Battery clip	To hold above	Rapid: 18-3585 Cost: £0.312 100+ Farnell: 908654 Cost: £0.442 100+ Digikey UK: BK-888-ND Cost: £0.1674 100+
LED	5mm colour chaging	Rapid: 55-1906 £0.4326 100+ eBay 1: Cost: £6.99 for 30 eBay 2: Cost: £3.50 for 30
Pin	13mm panel pin	Stones hardware £0.56 for box (100pcs) eBay 1 £1.60 for box
Badge Clip	To fit above pin	eBay 1: Cost: £4.99 for 100 eBay 2: Cost: £3 for 100

Parts List - SMD

The SMD version of the badge was designed for more advanced users so they can learn to do surface mount soldering or use an SMD oven. The circuit is a Flip Flop Two Transistor Flasher. The schematic diagram is here: ADD a PHOTO/PDF HERE

Part	Reference	Details	Supplier
Capacitor	C1, C2	Control flash rate. 10uf used. Size: 1206.	RS: 740-7546 Farnell: 1759483
Resistor	R2, R3	Control Flash Rate. 100k used. Size: 1206	Rapid: 72-1437 Farnell: 2073883
Resistor	R1, R4	Limit LED current. 0 ohm with 3V battery. Size: 1206	Rapid: 72-1207 Farnell: 2073874
Transistor	Q1, Q2	NPN type. S0323. BC817W used.	Farnell: 2114873
LED	D3, D4	Red or Green. Not enough voltage for Blue/White. Size: 1206	Green. RS: 466 3908 Green. Farnell: 8530033 Red. RS: 466 3914 Red. Farnell: 2314333

PCB Files

The PCB was designed using KiCAD - an open source PCB design package.

The PCB files are available to download here.