2 layers18.5 × 11.1 mm
Switch
byrantech/laptop
anyon_e, a highly integrated, high end, open source laptop. Attempt the impossible.
6 parts4.3kMIT
2 layers58 × 35 mm
Heatpress timer
luteron6/heatpress-timerThe repo for my heatpress timer.
- Size
- 58 × 35 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 6
- Nets
- 14
- Pads
- 44
- Tracks, vias
- 70, 5
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 20 May 2025
- Updated
- 2 Jul 2025
Overview
Heatpress timer is an open-source printed circuit board by luteron6, from the luteron6/heatpress-timer repository on GitHub, published under the MIT licence. It is a 2-layer board of 58 × 35 mm with 6 parts on 14 nets, routed with 70 tracks and 5 vias.
Its parts include 3 switches, 2 connectors and 1 IC. It belongs with the ESP32 and RISC-V boards of this library.
README
README.mdheatpress-timer
The repo for my heat press timer. I created this to solve a problem with my heat press. A heat press basically has a hot metal plate that moves up and down, used to transfer vinyl, DTF transfers, and other 'transfers' to a t-shirt or other garment. The problem is that the timer must be manually stopped and started, making the process inefficient. This project seeks to automate the timer starting and stopping process by detecting when the metal plate is lowered.
It all revolves around this limit switch:
When this limit switch closes, it triggers the timer:
The piezo is used to alert the user when the timer runs out of time. The plus and minus buttons allow the user to change the ammount of time the timer counts down from.
BOM
| Item | QTY Needed | QTY Purchased | Price | Description | Link |
|---|---|---|---|---|---|
| XIAO ESP32 C6 | 1 | 1 | $9.84 | The brain! | Link |
| 2"" LCD Screen | 1 | 1 | $8.21 | Countdown display | Link |
| Vertical Limit Switches | 10 | 10 | $1.87 | Coundown reset trigger | Link |
| Buzzer | 1 | 10 | $2.17 | Alarm | Link |
| Momentary Buttons | 2 | 6 | $1.98 | Buttons to change the countdown time | Link |
| Solder | 1 | 1 | $10.99 | Ran out of solder | Link |
| Threaded Inserts | 4 | 400 | $15.98 | Hardware for case | Link |
| PCB | 1 | 5 | $13.55 | Price for PCB and shipping at JLCPCB | |
| Sales Tax | $3.96 | ||||
| Shipping | $11.12 | Aliexpress Shipping | |||
| Shipping | $9.77 | Pyrodrone Shipping | |||
| TOTAL | $89.44 |
There's three main parts:
The CAD
The case! Three parts, the top/bottom of the case, and the vertical switch mount. The /CAD folder has all the parts as a STL, and everything in the STEP file. Meant to be 3D printed.
The PCB
It connects all the electronics! It's meant to be bolted to the back of the screen. Both the KiCAD source files and the gerber files are in there.
The Code
I designed the code to run on CircuitPython. Still a work in progress, but essentially it changes the time with the buttons (+ and -), it resets the timer when the limit switch is triggered, and beeps when the timer is at 0. The last known time is stored in the file settings.txt so that it persists across reboots. Drop/upload all the files in /Code into the REPL once CircuitPython is installed on the ESP.
Parts
6| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | Switch | custom-library:2-pin pads | SW1, SW2 |
| 1 | 2" SPI ST7789VW Display | custom-library:8-pin pads | J1 |
| 1 | Piezo | custom-library:Buzzer | J2 |
| 1 | Vertical Limit Switch | custom-library:Vertical Switch | SW3 |
| 1 | XIAO-ESP32-C6 | Seeed Studio XIAO Series Library:XIAO-ESP32C6-DIP | U1 |
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Questions
How big is the Heatpress timer PCB?
It measures 58 × 35 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Heatpress timer use?
6 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 Heatpress timer KiCad files?
From the luteron6/heatpress-timer repository on GitHub, at the commit this page was made from: the board is PCB/HeatPressTimer.kicad_pcb and its schematic PCB/HeatPressTimer.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Heatpress timer design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).