This is a reference design of MAX3050 with a standard configuration for normal mode #MAX3050 #can #interface #template #transceiverCircuit #referenceDesign #canbus #analogdevices #reference-design

This project is a motherboard for the ESP32-CAM module, which enables easy and flexible WiFi camera applications. The motherboard provides power supply, programming interface, and GPIO expansion for the ESP32-CAM. It also supports external sensors for more functionality. #motherboard #WiFi #MCU #ReferenceDesign #project #ESP32 #camera #reusable #module #edgeComputing #espressif #template

RP2040 Raspberry Pi Pico replacement for the ATmega8 SLE4442 emulator, using PIO and protected 5 V smart-card interfaces.

A rechargeable wrist-worn push-to-talk interface for a cloud-hosted AI assistant, with Wi-Fi, microphone, speaker, simple status feedback, and optional direct Bluetooth-earbud audio.

Production four-channel 200 kg load-cell ADC board using dedicated HX711 converters and a Raspberry Pi 40-pin GPIO interface, optimized for low analog noise and enclosure mounting.

Compact redesign of the SIM7000 Shield v5 cellular modem PCB, preserving RF, power, SIM, antenna, and essential interface requirements.

Battery-powered CH592-family BLE electronic shelf label with a 2.13-inch SSD1680 E-Ink interface and sleep-disabled 15 V refresh rail.

General-purpose AD5933 impedance analyzer with protected external 5 V input, regulated 3.3 V rail, host I2C interface, selectable 10 kΩ/100 kΩ/1 MΩ feedback ranges, and DUT connection for measurements up to 100 kHz.

Dual OV5640-class DVP camera to USB 2.0 High-Speed UVC interface using a Gowin GW1NR-9 FPGA and USB3320 ULPI PHY.

Universal industrial data-acquisition POC/MVP with modular analog, temperature, current, vibration and digital interfaces, protected 24 VDC power, local buffering, Wi-Fi and cellular connectivity.

USB-C 5 V powered controller generating protected 3.3 V and 8 V television rails plus a piezo tap-detector interface for an external ESP32-C3 module.

3.3 V ESP32-S3 rocket payload OBC with I2C sensors, GPS UART, CAN payload interface, and buzzer control.

Black Magick Heavy Industries KYB1 programmable wireless keyboard, model BLKMGK-KYB1-BASIC, featuring a 69-key layout, XIAO ESP32-C5 controller, Seeed Studio Wio-SX1262 LoRa/Wi-Fi module, configurable RGB backlighting, microSD storage, dual USB-C interface

Dual-ESP32-S3 three-port USB HID passthrough and input-modification bridge with CH343 PC2 command interface, clean-room MAKCU public-protocol compatibility, protected dual-source power, and 4-layer USB-controlled-impedance requirement.

Supervised-bench reference schematic for a 100 W, 230 VAC single-phase transformerless bidirectional grid-to-12 V battery converter, including protection, sensing, isolated control interfaces, LCL/EMI filtering, HV bridge, DC link, and non-isolated synchronous buck/boost stage. Not a certified grid-tie product.

Modern SMD recreation of the Nuova Elettronica LX750 analog curve tracer, with analog X/Y acquisition for RP2040 processing and a 4-inch SPI TFT display interface.

An aes3 usb Interface.

Beginner-prototype solar bee monitor central controller using a plug-in 38-pin ESP32 NodeMCU-32, breakout sensor interfaces, switched camera and gate power, RS-485, monitored rails, and isolated safety-critical 2S charging/protection interfaces pending fully verified implementations.

Screw-terminal wiring and power-distribution PCB for an Arduino Mega, four BTS7960 DC motor drivers, a TB6600 stepper driver, relay-controlled pumps, MG996R servos, HC-SR04 sensors, DS18B20 probes, and potentiometers. Accepts 24V and interfaces to external high-current buck converters.

Four-phase 0.5–100 V, 0–40 A programmable CV/CC bench supply architecture. High-power AC/DC modules and contactors are modeled as off-board interfaces; the PCB schematic focuses on buck power stages, control, sensing, protection, and auxiliary rails.

KiCad schematic reconstruction for YachtWave Rev B: ESP32-S3 controller with power input, USB-C, SD card, CAN bus interface, indicators, and protection circuitry.

Vitachrona main watch PCB — RK3568 compute-core migration is now the authoritative target. Retained hard requirements are BG95M3LA-64-SGNS + ST4SIM-300M, independent native USB2 paths for BG95 debug and the 4-pin dock, nRF5340 hub, PN7160, Qi/BQ25895 charging, harvesting interfaces, AD5940, main-board sensors, eMMC, and the 40-pin MIPI display connector. Destructive migration is blocked pending an authoritative Rockchip LPDDR4X reference topology/IOMUX package, a fully audited RK809-5 library part and exact PMIC rail map, and a complete typical/peak/sleep rail budget including BG95 transmit transients at minimum protected battery voltage. Existing compute circuitry is preserved non-destructively until those gates close.

Portable Linux cyberdeck based on RK3588S2 with LPDDR4x memory, LTE/GNSS M.2, LoRa, USB-C, USB-A 3.0, HDMI, display/keyboard interface, speaker, and battery power.

BLE smart espresso scale with USB-C power, single-cell Li-ion battery charging, load-cell measurement, local data logging, and an integrated segment/display interface.

Battery-powered smart espresso scale with BLE/WiFi-capable MCU, load-cell measurement, OLED interface, USB-C charging, and debug/programming access.