https://sudonull.com/pid-controller-modeling-p-i-d-parts
Breakdown of PID controller via FDTD simulation of heater and mechanics. Code in Mathematica, error elimination, coefficient tuning. Study principles for embedded systems.
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https://sudonull.com/rp2040-fan-controller-diy-pwm-build-guide
Build a custom RP2040 PWM fan controller that fully shuts off fans and integrates with FanControl for silent PC cooling. Perfect for high-end rigs—get full control over noise and temps today.
https://sudonull.com/usb-1-0-controller-on-spinalhdl-implementation
Detailed guide to creating a USB 1.0 host controller on SpinalHDL for RISC-V SoC. HID devices, FSM, NRZI encoding. Integration into FPGA — study the code and schematics.
https://sudonull.com/usb-controller-on-fpga-development-for-hid-devices-using-the-example-of-a-keyboard
Practical guide to creating a USB 1.1 controller on FPGA. Module architecture, device initialization, analysis of HID descriptors and keyboard connection. Verilog code examples.
https://sudonull.com/air-freshener-modification-for-zigbee-fingerbot
Integrate Fingerbot into AirWick for smart home without WiFi. Step-by-step hack with soldering, power issues and solution via voltage drop. Assemble an autonomous spray controller.
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