A simple PCB to control an Actiforce desk lift from a Blue Pill STM32 microcontroller board using two low-current relays.
The PCB itself is designed mostly one-sided, you just need a single jumper wire if you want a one-sided board. This makes it suitable for self-etching.
You can order the PCB on Aisler.
This is a LibrePCB project!
| Designator | Description | MPN | Approx. Cost |
|---|---|---|---|
| U1 | STM32F103 "Blue Pill" | 5.50 CHF | |
| U1 | Socket Strip 1x20 | 0.74 USD | |
| K1, K2 | Relay 3V 16.7mA | TXS2SA-3V | 4.56 CHF |
| J1 | 7-Pin DIN 45329 Connector M | 0.37 USD | |
| J2 | 7-Pin DIN 45329 Connector F | 0.42 USD | |
| D1, D2 | Diode Schottky 30V 500mA | NSR0530HT1G | 0.16 CHF |
| R1 | Resistor 1.8K 3216 (1206) | 0.02 CHF | |
| PCB | Printed Circuit Board | 7.50 CHF |
Total material cost: ~24 USD
See LICENSE.txt.