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ESP32-M12-CAN-Power-Adapter

lessthancompetent·ESP32-M12-CAN-Power-Adapter·netlist/esp32-m12-can-power-adapter.net

This repository ships a schematic but no board layout.
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About the ESP32-M12-CAN-Power-Adapter PCB

ESP32-M12-CAN-Power-Adapter is an open source AVR/Arduino PCB design by lessthancompetent, published on GitHub. It is a board, with 46 components from 37 distinct parts.

Its main chip is the ATTINY1616-SFR, from the AVR/Arduino family. Other key parts include the TLV75533PDBVR, LM5164QDDARQ1 and LTC2954CTS8-1#TRPBF. By type, the board carries 17 capacitors, 12 resistors, 4 ICs, 4 connectors, 4 diodes and 1 fuse.

It belongs with the rf & radio designs in this gallery.

From the project

24 V vehicle-rail power adapter and CAN breakout, designed in Flux.ai, with netlists converted for import into KiCad and EasyEDA Pro.

24 V vehicle-rail power adapter and CAN breakout, designed in Flux.ai, with netlists converted for import into KiCad and EasyEDA Pro.

Signal chain: M12 5-pin A-coded CAN/power in (J1) → 1.5 A PTC fuse → SS510 reverse-polarity Schottky → SMCJ51A 51 V TVS → LM5164-Q1 24 V→5 V/1 A buck → TLV75533 3.3 V LDO. An ATtiny1616 acts as an I²C-slave timing MCU (UPDI programmable), with headers for an STX882 433 MHz transmitter and a Waveshare display interface (5 V, CAN, I²C), an LTC2954-1 pushbutton on/off controller driving the buck's EN/UVLO, and PESD2CANFD24V ESD protection on CANH/CANL.

Main components on the ESP32-M12-CAN-Power-Adapter

ATTINY1616-SFRTLV75533PDBVRLM5164QDDARQ1LTC2954CTS8-1#TRPBF

ESP32-M12-CAN-Power-Adapter bill of materials (BOM)

46 components, 37 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATTINY1616-SFR
U1
1
TLV75533PDBVR
U2
1
LM5164QDDARQ1
U3
1
LTC2954CTS8-1#TRPBF
U4
1
T4145015051-001
M12_5P_CAN
J1
1
S6B-XH-A(LF)(SN)
WAVESHARE_IF
J2
1
S2B-XH-A-1(LF)(SN)
PWR_BTN
J3
1
T4145015051-001 PLACEHOLDER FOR T4144035021-000
M12_PWR_PLACEHOLDER
J4
1
JK-mSMD150SF/24V
PTC 1.5A 24V
F1
1
15912040
STX882_HDR
H1
1
15912040
I2C_HDR
H2
1
X4611WRS-03I-C40D28
UPDI_HDR
H3
1
SS510
D1
1
SMCJ51A
D2
1
LM3Z18VT1G
D3
1
PESD2CANFD24V-TR
PESD2CANFD24V
D4
1
FXL0630-330-M
33uH
L1
2
CC0603KRX7R7BB104
100nF
C1, C3
2
TCC0805X7R106K160FT
10uF
C2, C4
2
C1608X7R1C105K080AC
1uF
C5, C6
Show 17 more
QtyPartRefs
3
12101C225K4T2A
2.2uF/100V
C7, C8, C9
1
LMK316ABJ226MLHT
22uF/25V
C10
1
CC0603KRX7R9BB222
2.2nF
C11
1
CC0603KRX7R9BB332
3.3nF
C12
1
CL10C161JB8NNNC
160pF C0G
C13
2
CL10B104KB8NNNC
100nF
C14, C15
1
C0603C333K5RACAUTO
33nF
C16
1
CC0603KRX7R9BB105
1uF
C17
1
RC0603FR-07100RL
100R
R1
2
0603WAF4701T5E
4.7k
R2, R3
1
0603WAF1002T5E
10k
R4
3
0603WAF1003T5E
100k
R5, R7, R10
1
0603WAF316KT5E
316k
R6
1
MCR03EZPFX2263
226k
R8
1
0603WAF1004T5E
1M
R9
1
RC1206FR-0722KL
22k
R11
1
0603WAF5101T5E
5.1k
R12

ESP32-M12-CAN-Power-Adapter design files

The KiCad project lives in the lessthancompetent/ESP32-M12-CAN-Power-Adapter repository on GitHub; these links point at the commit this page was built from.

ESP32-M12-CAN-Power-Adapter: common questions

What microcontroller does the ESP32-M12-CAN-Power-Adapter use?

The ESP32-M12-CAN-Power-Adapter is built around the ATTINY1616-SFR, from the AVR/Arduino family.

How many components are on the ESP32-M12-CAN-Power-Adapter?

46 components, from 37 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 ESP32-M12-CAN-Power-Adapter design files?

From the lessthancompetent/ESP32-M12-CAN-Power-Adapter repository on GitHub, which has a netlist and the BOM; the links under Design files point to each one.

Can I use the ESP32-M12-CAN-Power-Adapter design in my own project?

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

Can I test firmware for the ESP32-M12-CAN-Power-Adapter 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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