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.
Compact no-test-point relayout of the EVAL-LTM4712-A2Z regulator circuit, optimized for small form factor with selectable/replaceable feedback resistor values for 12 V to 13 V output operation.
Compact 40 mm × 40 mm ESP32-C3 mini drone flight controller with BMI270 IMU, 1S LiPo buck-boost 3.3 V power, motor PWM outputs, GPS/programming connectors, and 4-layer PCB constraints.
24 V DC field sensor wiring diagram for Siemens S7-300 SM321 DI 16xDC24V inputs, recreated from the provided reference image with +24 V/0 V rails and I0.0–I0.7 signal mapping.
12 V Bluetooth controller board for 24 LED letter outputs using an ESP32, I/O expansion, and low-side output drivers. Draft specification captured from an uploaded reference schematic image; exact schematic recreation needs confirmation of unreadable details.
USB-C powered low-power consumer environmental sensor node with Wi-Fi/Bluetooth connectivity, digital temperature/humidity sensing, protected 5 V input, and 3.3 V system rail.
Placa de controle analógico/digital para atuador linear DC de até 1000 W com ponte H BTS7960, PWM NE555, regulador 5 V e conectores externos de direção/enable.
USB-C powered low-power environmental sensor node with ESP32 Wi-Fi/Bluetooth, digital temperature/humidity sensing, and protected 5 V input for consumer use.
4-layer 9–15 V input SEPIC converter producing regulated 12 V at up to 1.5 A, using IRLZ44N MOSFET, SS34 Schottky diode, separate 100 µH inductors, and thermal-via PCB layout for EV battery-management student project.
ESP32-centered controller PCB with 14.8 V battery bus, external 3.3 V and 12.2 V buck converter interfaces, motor logic headers, and servo driver connections.
Low-power USB-C environmental sensor node using a dual-radio Wi‑Fi/BLE MCU, digital temperature/humidity sensing, protected 5 V USB-C input, and 3.3 V regulation for consumer use.
Two-stage 12 V common-emitter small-signal amplifier using MMBT2222A transistors, with a 14.0 MHz single-tuned output stage, fixed 510 ohm load, and RF test headers for input, interstage monitoring, and output.
Consumer USB-C environmental sensor node using a low-power Wi-Fi + Bluetooth MCU and digital temperature/humidity sensor. Powered from 5 V USB-C sink input with input protection including reverse blocking, OVP, UVLO, and overcurrent limiting, then regulated to 3.3 V for the radio and sensor.
Circuito digital puro a 5 V con un único pulsador para avance por toque corto, confirmación por toque largo de 2 s, visualización de 4 opciones por LED y transmisión DTMF mediante HT9200A.
USB-C powered consumer environmental node with an ESP32-C3 Wi-Fi/BLE module, protected 5 V USB-C input, efficient 3.3 V regulation, and a digital temperature/humidity sensor.
Single-channel analog front-end for a 40 kHz air-coupled ultrasonic receiver using a 5 V single supply, buffered 2.5 V mid-reference, protection, gain, band-pass shaping, and ADC-ready output centered at VREF.
USB-C powered low-power environmental sensor node with Wi-Fi, Bluetooth LE, protected 5 V input, 3.3 V regulation, and digital temperature/humidity sensing for consumer use.
Industrial 24 VDC input protection, distribution, regulated 12 V and 5 V outputs, diagnostics, test points, and selectable 0V-to-PE bonding. Schematic and BOM only; no PCB layout started.
