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PCB
Relay
USB-B Connector
2 row pin strip
Jumber block
2 pos terminal block
Resistor 1M
Resistor 100 ohm
Resistor 10K
Resistor 20K
Red LED 3mm
Green LED 3 mm
Tactile Switch
Transistor BC517
Diode
Capacitor
Capacitor
Capacitor
Jumper Block
Xtal
LED Driver
LED 1 digit
LED 4 digit
CPU
<inventory pic here>
Step 2 – Assembly
1. Locate the two row pin header. Place it in the PCB and solder it in place. This is easiest to do
with the PCB resting on the pin-header. The short pins go into the PCB. Be careful not to
push too hard or the pin will shift. If this happens place the tip of the soldering iron on the pin
to heat it and gently push it back into place.
1
pcb
1
Tianbo HK3FF-DC5v-SHG
1
1
1
3
1
Brown-black-green-gold
4
Brown-black-brown-gold
4
Brown-black-orange-gold
1
Red Black Orange Gold
1
1
3
6mm x6mm
1
BC517
1
1N4004 or equiv
1
.01uf
1
.1uf
2
22pf
1
1
16mhz
1
Max 7219CNG
1
1
1
Atmega328 series
A-5012
ISP
Logic/load/input
R3
R4/R1/R2/R5
R7/R10/R9/R6
R8
LED 1
LED 2
Q1
D1
C1
C2
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