2 layers130.8 × 135.4 mm SpotWelder - Arduino Pro Mini vA x 4, the printed circuit board in 3D

SpotWelder - Arduino Pro Mini vA x 4

A timed circuit controlling a SSR connected to an old microwave transfirmer.

Size: 130.8 × 135.4 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 84
Nets: 29
Pads: 268
Tracks, vias: 512, 16
Pours: 4
Routed: Yes
KiCad: KiCad 8.0 (file 20240108)
Created: 10 Dec 2024
Updated: 10 Jan 2025

Overview

SpotWelder - Arduino Pro Mini vA x 4 is an open-source printed circuit board by jonsag, from the jonsag/SpotWelder repository on GitHub. It is a 2-layer board of 130.8 × 135.4 mm with 84 parts on 29 nets, routed with 512 tracks and 16 vias.

Its parts include 24 resistors, 24 ICs, 12 diodes and 8 capacitors. It belongs with the radio and wireless boards of this library.

README

README.md

SpotWelder

A timed circuit controlling an SSR connected to an old microwave transformer.

Weld time is displayed on an OLED screen, and set with a rotary encoder.

Category and platform

Radio and wireless

Project files

Show this board on your page

https://pcbkit.io/boards/jonsag/SpotWelder

The board's own page, for a message or a post.

Source

Repository: jonsag/SpotWelder
Board file: KiCad/SpotWelder - Arduino Pro Mini vA/SpotWelder - Arduino Pro Mini vA x 4.kicad_pcb
Commit: 6c31dc1
Licence: Not stated

Parts

Qty	Value	Footprint	References
16	MountingHole	MountingHole:MountingHole_3.2mm_M3	H1, H1, H1, H1, H2, H2, H2, H2, H3, H3, H3, H3, H4, H4, H4, H4
12	10k	My_Misc:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal_large	R1, R1, R1, R1, R3, R3, R3, R3, R5, R5, R5, R5
12	330R	My_Misc:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal_large	R2, R2, R2, R2, R4, R4, R4, R4, R6, R6, R6, R6
12	LED	My_Headers:2-pin JST LED	D1, D1, D1, D1, D2, D2, D2, D2, D3, D3, D3, D3
8	0.47u	My_Misc:C_Disc_D3.8mm_W2.6mm_P2.50mm_large	C1, C1, C1, C1, C2, C2, C2, C2
8	Switch	My_Headers:2-pin JST Switch	U2, U2, U2, U2, U3, U3, U3, U3
4	Arduino_Mini_Pro	My_Arduino:Arduino_Pro_Mini_vA_sides_n_A4,A5_large	U4, U4, U4, U4
4	KY-040_Rotary_Encoder	My_Headers:5-pin JST Rotary Encoder	U1, U1, U1, U1
4	SSD1306_I2C_display	My_Headers:4-pin JST SSD1306 I2C OLED Display	U5, U5, U5, U5
4	SSR_Relay	My_Headers:2-pin JST SSR	U6, U6, U6, U6

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Questions

How big is the SpotWelder - Arduino Pro Mini vA x 4 PCB?

It measures 130.8 × 135.4 mm and has 2 copper layers, 1.6 mm thick.

What parts does the SpotWelder - Arduino Pro Mini vA x 4 use?

84 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the SpotWelder - Arduino Pro Mini vA x 4 KiCad files?

From the jonsag/SpotWelder repository on GitHub, at the commit this page was made from: the board is KiCad/SpotWelder - Arduino Pro Mini vA/SpotWelder - Arduino Pro Mini vA x 4.kicad_pcb and its schematic KiCad/SpotWelder - Arduino Pro Mini vA/SpotWelder - Arduino Pro Mini vA.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the SpotWelder - Arduino Pro Mini vA x 4 design in my own project?

Its repository states no licence, so its author keeps all rights: ask jonsag before reusing the design.