USB RS232 Relay
The main objective of this board is to ring an school bell using a PC program written in python.
- This project is the interface of a PC to a Relay using a simple USB RS232 adapter.
- This approach was selected because the parts are easily found in any PC parts store.
- The relay is activated/deactivated using the RTS line of the serial port, any...
Seconsor controlled relay to be used for pump, main switch etc. S1 switch to be replace by magnetic water sensor (sump), photocell etc. For sump (drain pump) a timer might be needed to delay the start. This depends on the lenght of the sensor.
Quick-and-dirty little circuit to switch a garbage disposal from a low-voltage momentary button. PCB fits into junction box. For supporting files, refer to https://github.com/gutschke/garbagedisposal
I couldn't find all the parts that I wanted from LCSC. For now, I linked to DigiKey parts. If you have suggestions for suitable substitute parts from LCSC, please let me know.
I made reasonable acco...
This is a device that cuts anything that breaks the laser line. Once the photo resistor (PRA, PRB) detects no laser (LD+, LD-) , the motors (M1A, M1B, M2A, M2B) will start to spin. The motor shafts are connected to sharp blades that cuts. C2 is normally charged, when the device is triggered, C2 will discharge through the electromagnet 1 (EM1A, EM1B). The electromagnet 1 will release a sharp metal...