Battery-powered 18-channel sequential pyrotechnic initiator controller triggered by qualified 18 V COBRA pulses, with three six-channel RJ45 outputs and lockout after channel 18.

10-channel relay board for externally protected AC live switching with 24V coil drive harness, per-channel fuses, direct neutral/PE distribution, and local relay flyback protection.

Low-voltage control and power-control electronics for a 10-channel 220 V AC power sequencer using ESP32, shift registers, OLED display, and isolated/high-current AC sections to be added later.

Open Hornet 16-channel 28 V magnetic-hold coil driver for Honeywell ET switches. Arduino Mega/Pro Micro logic inputs drive low-side 100 V MOSFET channels for ET switch magnet coils with common ground, fail-safe pulldowns, 100 V flyback protection, dedicated 28 V coil input, and conservative high-current 4-layer PCB routing.

Motherboard for a sixteen-channel 807 nm laser system with Teensy 4.1 audio/PWM control, NUCLEO-G474RE safety/temperature supervision, Raspberry Pi 5 interfaces, protected 5 V input, and 16 DMN2056U low-side laser switches.

ATmega-based SMD controller for ten 12 V LED strip channels, each rated up to 2 A, with one pushbutton selecting and retaining one of ten lighting patterns.

Amplifier IC 1-Channel (Mono) Class AB 15-Multiwatt #Amplifier #Audio #commonpartslibrary

Battery-isolated 16-channel medical-grade EEG front end using dual ADS1299 analog front-ends and an STM32F405 host with integrated WiFi and microSD (SDIO), featuring corrected isolation, and robust low-jitter clock distribution for dual ADS1299 #WiFi #microSD #Isolation #Clocking #ADS1299 #STM32

Amplifier IC 1-Channel (Mono) Class AB 15-Multiwatt #Amplifier #Audio #commonpartslibrary

PCA9685 16-Channel Servo Driver