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DIY T12 iron

anshchawla521·DIY_T12_iron

DIY T12 iron PCB layout, top view — open source RP2040/RP2350 board by anshchawla521

About the DIY T12 iron PCB

DIY T12 iron is an open source RP2040/RP2350 PCB design by anshchawla521, published on GitHub. It is a 2-layer board measuring 97 × 67 mm, with 90 components from 49 distinct parts.

Its main chip is the RaspberryPi_Pico, from the RP2040/RP2350 family. Other key parts include the LM2596S-ADJ, LM358, ACS712XLCTR-05B, HUSB238 and INA219AxD. By type, the board carries 36 resistors, 20 capacitors, 17 diodes, 5 ICs, 4 connectors and 3 inductors.

From the project

This repository conatins all the files for the DIY soldering iron which is compatible with hakko 936 style station and is meant to be used as the replacement PCB for HAKKO 936 style clones. This can support HAKKO T12 irons, HAKKO A1560(hakko 936 station) style irons as well as JB

This repository conatins all the files for the DIY soldering iron which is compatible with hakko 936 style station and is meant to be used as the replacement PCB for HAKKO 936 style clones. This can support HAKKO T12 irons, HAKKO A1560(hakko 936 station) style irons as well as JBC c245 iron(yet to be checked).

The original Code was written by HomeMade Projects. Later i modified it to work with the provided PCB + support for more types of Iron's

Main components on the DIY T12 iron

LM2596S-ADJLM358ACS712XLCTR-05BHUSB238INA219AxDRaspberryPi_Pico

DIY T12 iron bill of materials (BOM)

90 components, 49 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LM2596S-ADJ
U1
1
LM358
U2
1
ACS712XLCTR-05B
HCPL-3700
U3
1
HUSB238
U4
1
INA219AxD
U8
1
RaspberryPi_Pico
A2
1
IRF9540N
Q1
1
BC547
Q2
1
DC INPUT
J1
1
output_connector
J4
1
OLED
J6
1
USB C BREAKOUT BOARD
J7
1
Buzzer
BZ1
1
Fuse
F1
10
SS310
D2, D3, D4, D5, D6, D8, D11, D15 +2
2
3.3
D9, D10
1
3.3V
D12
1
18V
D13
1
ESDA6V1-5SC6
D20
1
SMBJ24A
D21
Show 29 more
QtyPartRefs
1
SMBJ45A
D22
1
33UH
33uH
L1
2
100UH
100uH
L2, L3
1
0.47UF
0.47uf
C1
2
2NF
2nf
C2, C7
2
220UF
220uf
C4, C6
1
4.7UF
4.7uF
C5
12
100NF
100nf
C8, C9, C11, C12, C13, C14, C15, C16 +4
1
1000UF
1000uF
C24
1
1UF
1uF
C26
3
10K
10k
R3, R4, R37
5
1.5K
1.5k
R5, R21, R22, R23, R27
1
2k
R6
1
220K
220k
R7
3
1k
R8, R11, R12
4
10K
10k
R9, R13, R14, R15
1
470
R10
5
3.3K
3.3k
R16, R24, R25, R26, R28
1
1.7k
R17
1
1k
R18
1
7.5M
R19
1
100
R20
1
22.6K
R32
1
10K
10k
R33
1
5.1K
0.1
R34
1
1M
R35
1
50K
R36
1
5.1K
10k
R38
3
10k
R39, R42, R43

DIY T12 iron design files

The KiCad project lives in the anshchawla521/DIY_T12_iron repository on GitHub; these links point at the commit this page was built from.

DIY T12 iron: common questions

What microcontroller does the DIY T12 iron use?

The DIY T12 iron is built around the RaspberryPi_Pico, from the RP2040/RP2350 family.

How big is the DIY T12 iron PCB?

The DIY T12 iron measures 97 × 67 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the DIY T12 iron?

90 components, from 49 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 DIY T12 iron design files?

From the anshchawla521/DIY_T12_iron 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 DIY T12 iron design in my own project?

The repository has no license, so all rights stay with anshchawla521. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the DIY T12 iron without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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