Read GEMINI.md in this project and write an Arduino sketch for a [board name] that follows it. Use a hardware timer interrupt to toggle the LED every [interval], and a separate timer to print elapsed…

Help me design a retrofit actuator for an existing [valve type] in my lab. Keep manual operation fully available, so the actuator can be removed without changing the valve. Review servo torque against the [measured…

I want to design a set of tea light holders for 3D printing with build123d. Use the reference holder examples in [repository folder] as the starting point and follow their parametric style so the sizes…

My [microcontroller board] controls the fans in [device] and I have just rewired it. First scan the I2C bus on each pin pair, identify every sensor that responds, and record the working pins and devices…

Implement a serial upload protocol between my [generator script] and my [programmer board] EEPROM programmer. Follow the wiring and the OE, WE and CE timing in [wiring document] exactly. Start with a slow upload…

Design [game or circuit] in [relay simulator] using [relay count] relays. Once it works, compile the relay netlist to Verilog for [target chip or FPGA]. Run the original relay simulation and the Verilog simulation on…

Using the pin configuration and camera SDK documentation in [project folder], write the illumination driver for an ESP32 and the camera driver for [microscope model]. Build after each change and fix compile…

I'm bringing up a wearable ESP32 badge. The hardware spec and pin map are in [hardware specification]. Write firmware that checks each peripheral at boot with graceful failover: if one device fails, log the failure,…