HardLabs

T41-main board-V012

K0RGI·T41-K9HZ·T41_V012_Files_01-15-24/T41_V012_KiCad/T41-main-board-V012/T41-main-board-V012.kicad_pcb

T41-main board-V012 layout, top view — open source AVR/Arduino board by K0RGI

About the T41-main board-V012

T41-main board-V012 is an open source AVR/Arduino PCB design by K0RGI, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 100 × 100 mm, with 95 components from 50 distinct parts.

Its main chip is the ATtiny85-20S, from the AVR/Arduino family. Other key parts include the LM7805CT, AP7384-50V, LM1117T-3.3, PCM5102 and PCM1808PW. By type, the board carries 34 capacitors, 21 connectors, 16 resistors, 7 ICs, 5 diodes and 4 transistors.

From the project

This is the repository for the officially released V10, V11, and V12 versions of the T41 Software Defined Transceiver hardware and kits. Please read the areas below to understand this project, order boards, make your own boards, find build part lists (BOMs), order kits, and docum

This is the repository for the officially released V10, V11, and V12 versions of the T41 Software Defined Transceiver hardware and kits. Please read the areas below to understand this project, order boards, make your own boards, find build part lists (BOMs), order kits, and documentation that supports the T41 project.

Main components on the T41-main board-V012

LM7805CTAP7384-50VLM1117T-3.3ATtiny85-20SPCM5102PCM1808PWTeensy4.1

T41-main board-V012 bill of materials (BOM)

95 components, 50 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LM7805CT
U1
1
AP7384-50V
U2
1
LM1117T-3.3
U3
1
ATtiny85-20S
U4
1
PCM5102
U5
1
PCM1808PW
U6
1
Teensy4.1
U8
2
SUP90P06-09L
Q1, Q4
2
2N7000
Q2, Q3
1
+12V
J1
1
Fan1
J2
1
Acc
J3
1
12-13.8V
J4
1
Front Panel
J5
1
RF CONTROL
J6
1
Display
J7
1
Display Voltage
J8
1
Keys/PTT
J9
2
Conn_01x02
J10, J18
1
ENCODER
J11
Show 30 more
QtyPartRefs
1
BANDS
J12
1
Header
J13
1
Rec_Out
J14
1
Rec_In
J15
1
Mic_In
J16
1
Ex_Out
J17
1
Header
J22
1
Ethernet
J23
1
USBHost
J24
2
EA-T220-38E
H7, H8
1
ON-OFF BUTTON
SW1
2
TestPoint
TP1, TP2
1
1N4007
D1
3
LED
D2, D3, D4
1
10V
D5
3
10uH 20%
L1, L2, L3
3
470uF 25V
C1, C6, C7
15
0.1uF 50V
C2, C3, C8, C9, C10, C11, C13, C14 +7
11
10uF 16V
C4, C12, C15, C17, C18, C21, C22, C25 +3
1
1uF 50V
C5
2
2.2uF 16V
C28, C29
2
2.2nF
C32, C34
2
10K
R1, R2
4
1K
R3, R8, R9, R14
2
220R
R4, R5
3
100R
R6, R11, R12
1
2K2
R7
2
470R
R10, R13
1
150R
R15
1
100k
R16

T41-main board-V012 design files

The KiCad project lives in the K0RGI/T41-K9HZ repository on GitHub; these links point at the commit this page was built from.

T41-main board-V012: common questions

What microcontroller does the T41-main board-V012 use?

The T41-main board-V012 is built around the ATtiny85-20S, from the AVR/Arduino family.

How big is the T41-main board-V012?

The T41-main board-V012 measures 100 × 100 mm, has 4 copper layers and is 1.6458 mm thick.

How many components are on the T41-main board-V012?

95 components, from 50 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the T41-main board-V012 design files?

From the K0RGI/T41-K9HZ repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the T41-main board-V012 design in my own project?

Yes, under the terms of its GPL-3.0 license, which K0RGI chose for the repository.

Can I test firmware for the T41-main board-V012 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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