HardLabs

AVR-Transistor-Tester

Upcycle-Electronics·AVR-Transistor-Tester·AY-AT1/TT AY-AT/TT-Clone-AY-AT.kicad_pcb

AVR-Transistor-Tester PCB layout, top view — open source AVR/Arduino board by Upcycle-Electronics

About the AVR-Transistor-Tester PCB

AVR-Transistor-Tester is an open source AVR/Arduino PCB design by Upcycle-Electronics, published on GitHub. It is a 2-layer board measuring 141 × 66 mm, with 55 components from 35 distinct parts.

Its main chip is the ATmega328, from the AVR/Arduino family. Other key parts include the HT7550, TL431A and SRV05-4. By type, the board carries 24 resistors, 12 capacitors, 7 connectors, 4 ICs, 3 transformers and 1 crystal.

Main components on the AVR-Transistor-Tester

ATmega328HT7550TL431ASRV05-4

AVR-Transistor-Tester bill of materials (BOM)

55 components, 35 distinct parts.

QtyPartRefs
1
ATmega328
IC1
1
HT7550
IC2
1
TL431A
IC3
1
SRV05-4
IC4
1
8MHz
Y1
1
7-12V DC Input
J1
1
Frequency Out
J2
1
Voltmeter 0.1-45V
J3
1
Frequency Measure
J4
1
TT ZIF
J5
1
9v Battery
J6
1
TFT LCD ST7735
J7
1
Programming Header
ISP1
1
RE1
SW1
2
SS9014
T1, T2
1
SS9012
T3
1
LED1
LED1
1
P6KE6V8A
D1
1
1nF
C1
1
10nF
C2
Show 15 more
QtyPartRefs
6
100nF
C3, C4, C5, C6, C13, C14
2
10uF
C9, C10
2
22pF
C11, C12
3
680R
R1, R3, R5
3
470k
R2, R4, R6
2
3k3
R7, R12
2
27k
R8, R15
1
100k
R9
1
33k
R10
6
10k
R11, R13, R18, R19, R23, R24
1
220R
R14
1
2k2
R16
2
1k
R17, R20
1
180k
R21
1
20k
R22

AVR-Transistor-Tester design files

The KiCad project lives in the Upcycle-Electronics/AVR-Transistor-Tester repository on GitHub; these links point at the commit this page was built from.

AVR-Transistor-Tester: common questions

What microcontroller does the AVR-Transistor-Tester use?

The AVR-Transistor-Tester is built around the ATmega328, from the AVR/Arduino family.

How big is the AVR-Transistor-Tester PCB?

The AVR-Transistor-Tester measures 141 × 66 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the AVR-Transistor-Tester?

55 components, from 35 distinct parts. The full bill of materials is listed on this page.

Where can I download the AVR-Transistor-Tester design files?

From the Upcycle-Electronics/AVR-Transistor-Tester repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the AVR-Transistor-Tester design in my own project?

The repository has no license, so all rights stay with Upcycle-Electronics. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the AVR-Transistor-Tester without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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