HardLabs

ToothEater-HW-THT

BlackbirdStandalone·ToothEater-HW-THT·pcb/kicad/ToothEater/ToothEater.kicad_pcb

ToothEater-HW-THT PCB layout, top view — open source AVR/Arduino board by BlackbirdStandalone

About the ToothEater-HW-THT PCB

ToothEater-HW-THT is an open source AVR/Arduino PCB design by BlackbirdStandalone, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 44 × 44 mm, with 32 components from 21 distinct parts.

Its main chip is the ATTINY85-20PU, from the AVR/Arduino family. Other key parts include the 2223-SSK02-FPH-254-A4 and MCP100-475DI/TO. By type, the board carries 12 resistors, 6 transistors, 5 diodes, 3 ICs, 2 connectors and 2 jumpers.

From the project

Honda Blackbird ECU Tooth Eater Hardware Module - Through hole version

This repository contains the hardware design of the Honda Blackbird v1.1 Tooth Eater Module - (Through hole version). This through hole version is intended for the DIY'er for easier construction. This PCB is a simple 2 layer design, measuring 44mm x 44mm for insertion into the Hammond 1551R case. This hardware is designed to work with the latest firmware version (v1.x) contained in the firmware respository. I.e. 'ToothEater_v1.2.hex'. Shown below are blank boards as received by PCBWay. This is a small unit slightly larger than a matchbox, shown in the 2" x 2" case.

ToothEater-HW-THT, from the project README
From the project README

Main components on the ToothEater-HW-THT

ATTINY85-20PU2223-SSK02-FPH-254-A4MCP100-475DI/TO

ToothEater-HW-THT bill of materials (BOM)

32 components, 21 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATTINY85-20PU
ATTINY85-20PU-ND
U1
1
2223-SSK02-FPH-254-A4
VR_Conditioner_8-Pin-DIP
U2
1
MCP100-475DI/TO
MCP100
U3
1
497-7177-5
BD681
Q1
5
4878-BC546B
BC546
Q2, Q3, Q4, Q5, Q6
2
WM1814
Conn_02x02_Molex
J1, J2
1
CRANK HALL EFFECT SWITCH
JP1
1
CAM HALL EFFECT SWITCH
JP2
1
641-1311-1
1N4004
D1
1
1N4735AFS
6.2v
D2
1
732-5016
Power Led
D3
2
732-5016
LED_3.3mm
D4, D5
1
495-B32529C3104J189
100n
C1
1
495-2426
0.1uF
C2
1
13-MFR-25FRF52-1K5
1K5
R1
1
13-MFR-25FRF52-470R
470
R2
2
13-MFR-25FRF52-10K
10k
R3, R5
2
13-MFR-25FRF52-1K
1k
R4, R6
2
13-MFR-25FRF52-47K
47k
R7, R9
3
13-MFR-25FRF52-330R
330
R8, R10, R12
Show 1 more
QtyPartRefs
1
13-MFR-25FRF52-4K7
4k7
R11

ToothEater-HW-THT design files

The KiCad project lives in the BlackbirdStandalone/ToothEater-HW-THT repository on GitHub; these links point at the commit this page was built from.

ToothEater-HW-THT: common questions

What microcontroller does the ToothEater-HW-THT use?

The ToothEater-HW-THT is built around the ATTINY85-20PU, from the AVR/Arduino family.

How big is the ToothEater-HW-THT PCB?

The ToothEater-HW-THT measures 44 × 44 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ToothEater-HW-THT?

32 components, from 21 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 ToothEater-HW-THT design files?

From the BlackbirdStandalone/ToothEater-HW-THT 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 ToothEater-HW-THT design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which BlackbirdStandalone chose for the repository.

Can I test firmware for the ToothEater-HW-THT 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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