Battery-powered ESP32-C6 Thread environmental sensor using SCD41 for temperature and CO2, USB-C for charging/data, LiPo power, and a buck-boost 3.3 V rail.
USB-C powered consumer environmental sensor node with ESP32-class Wi‑Fi/BLE connectivity, digital temperature/humidity sensing, protected 5 V input, and low-power 3.3 V electronics.
Consumer USB-C powered low-power environmental sensor node with Wi-Fi, Bluetooth LE, digital temperature/humidity sensing, and protected 5 V input supporting 0.5–3 A USB-C sources.
12 V NE555 astable ignition-coil driver using an IRF840 MOSFET low-side switch with gate conditioning, decoupling, input/output connectors, and flyback clamp protection.
USB-C powered low-power consumer environmental sensor node using a Wi‑Fi/BLE 5.x MCU module, digital temperature/humidity sensor, and protected 5 V USB-C input sized for 0.5–3 A sources.
PCB de una cara con forma de árbol de Navidad para transferencia de tóner: intermitente con NE555 DIP-8, BC557, 18 LEDs de 5 mm, resistencias, preset, capacitores electrolíticos y batería de 3.7 V.
ESP32-C3 based controller for two 5 V, 150 mA servos from a 9–32 V DC input. Uses an LMR51625 buck regulator for the 5 V rail and derives 3.3 V logic power for the ESP32-C3.
Fully integrated Arduino Uno shield with 13.56 MHz RFID reader, microSD card interface, isolated relay output for a 120 VAC signal circuit, and 28 VDC to 5 V buck power input.
Consumer USB-C powered low-power environmental sensor node using a Wi-Fi + Bluetooth LE MCU module, digital temperature/humidity sensor, USB-C 5 V input, and protected 3.3 V power architecture sized for 0.5–3 A USB-C sources.
Compact automotive inline AHD 720P/1080P camera to NTSC CVBS converter module with 12 V protection, regulated rails, video decode/scale/encode chain, and rugged 4-pin vehicle camera connectors.
Low-power USB-C powered environmental sensor node with Wi-Fi 802.11 b/g/n, BLE 5.x, digital temperature/humidity sensing, and protected 5 V USB-C input for 0.5–3 A sources.
USB-C 5 V powered industrial environmental sensor node using an ultra-low-power WiFi/BLE MCU, digital temperature/humidity sensor, and protected 5 V input sized for 0.5–3 A USB-C sources.
Consumer USB-C powered low-power environmental sensor node with WiFi/BLE MCU, digital temperature/humidity sensing, USB-C 5 V input, and input protection for 0.5–3 A sources.
24 V protected high-current input stage with ESD/transient suppression, overcurrent protection, and MOSFET reverse-polarity protection for loads up to 6 A RMS with 15 A spikes.
USB-C powered low-power environmental sensor node with ESP32-class Wi‑Fi/BLE connectivity, a digital temperature/humidity sensor, 5 V USB-C sink input, and input protection sized for 0.5–3 A sources.
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.
USB-C powered low-power temperature/humidity sensor node with ESP32-class Wi‑Fi/BLE 5.x connectivity, digital T/RH sensing, USB-C 5 V sink input, and protected 3.3 V power path sized for 0.5–3 A sources.
Consumer USB-C powered environmental sensor node with ESP32-class Wi-Fi/BLE, digital temperature/humidity sensing, protected 5 V input, and low-power 3.3 V architecture.
PCB de distribución de potencia desde batería NiMH/NiCd de 12 V para un driver TB6600/NEMA17 y tres servomotores MG996R mediante módulos DC-DC comerciales LM2577/LM2596, con análisis de protecciones, filtrado y layout.
Concept specification for a 320 W bench diagnostic power station with programmable 0.2–30 V / 0–10 A output, touchscreen UI, protocol test ports, and modular expansion support.
