Abra UNO R3 User manual

OPEN-SMART UNO R3 DIY Parts Soldering Guide
Note:
(1) Recommend using a constant temperature soldering station and set soldering temperature of 350 degrees Celsius.
(2) Please pay attention to ventilation when soldering.
(3) Soldering iron should not stay on the pad over 3 seconds.
(4) Please turn off the soldering station in the end and wash your hands.
Soldering in the order shown in the following table:
STEP
Value
Quantity
Part Number
NOTE
STEP1
1kOhm Resistor
4
R2, R3,R4,R5
Pins does not distinguish
between positive and negative.
STEP2
10kOhm Resistor
1
R1
STEP3
USB to UART
module
1
MOD1
Pay attention to the direction of
the module.
STEP4
2PIN white Button
1
RESET
STEP5
22pF Ceramic
Capacitors
2
C1, C2
Pins does not distinguish
between positive and negative.
STEP6
100nF Ceramic
Capacitors (104)
3
C3, C4, C5
STEP7
3pin Round hole pin
header
1
J2
STEP8
28PIN-DIP socket
1
U1
Pay attention to the direction
STEP9
Buzzer
1
BUZ1
Longer leg of the LED is the
positive electrode, and insert it
into the pad near "+".
STEP10
47uF Aluminum
electrolytic
capacitor
1
C6
STEP11
Red LED
1
LED1
Green LED
1
LED2
Yellow LED
2
LED3,
POWER
STEP12
10pin yellow pin
header
1
J3
STEP13
8pin yellow pin
header
1
J4
STEP14
2X3P Pin Header
1
J5
STEP15
6pin blue pin header
1
J7
STEP16
8pin red pin header
1
J6
STEP17
USB socket
1
J1
You can upload code to the
board via it.
STEP18
4pin button
1
K1, K2, K3

Then, you can plug the HC-49S 16MHz crystal oscillator onto the 3pin Round hole pin header.
And then, you can plug ATmega328P-PU onto the 28PIN-DIP socket, please pay attention to the direction and be careful
not to bend the pins.
After you have done all of the previous steps, you can use it as UNO R3 board because the ATmega328P-PU has been
burned UNO R3 bootloader.