The LIS3DH is a very popular low power triple-axis accelerometer. It's low-cost, but has just about every 'extra' you'd want in an accelerometer. This sensor communicates over I2C or SPI (our library code supports both) so you can share it with a bunch of other sensors on the same I2C bus. There's an address selection pin so you can have two accelerometers share an I2C bus

Guitar pedal starter template based on project by Mark Wu. Includes schematic and PCB layout for basic DIY pedal hardware. This includes two 1/4" jacks (one for input and one for output), a 9V power supply (including LED), a 3PDT true bypass wiring setup, and an example potentiometer that can be copy/pasted throughout the circuit. The headers are meant to be unpopulated so that wires can be soldered to the pads. PCB design rules imported from the JLCPCB 2-layer stackup template. #template

The LIS3DH is a very popular low power triple-axis accelerometer. It's low-cost, but has just about every 'extra' you'd want in an accelerometer. This sensor communicates over I2C or SPI (our library code supports both) so you can share it with a bunch of other sensors on the same I2C bus. There's an address selection pin so you can have two accelerometers share an I2C bus

This project is a reference design for an ESP32-WROOM-32E based device. It features USB-C for power and data transfer, onboard voltage regulation, and multiple peripheral connections. It also includes a CH340C for USB to serial conversion #referenceDesign #project #ESP32 #ESP32WROOM #RF #WIFI #MCU #referenceDesign #simple-embedded #espressif #template #reference-design

Explore the Raspberry Pi Pico Template Unleash the power of these flexible microcontroller boards, starting at just $4. The Raspberry Pi Pico series features a range of compact, high-performance boards powered by the RP2040 chip. #project-template #template #raspberry #pi #pico

Power Barrel Connector Jack 2.10mm ID (0.083"), 5.50mm OD (0.217") Through Hole, Right Angle #Barrel_Jack_MountingPin

ESP32-based eight-channel K-type thermocouple acquisition and fail-safe 24 V, 5 A heater controller with onboard power conversion.

Compact vintage-digital E-Ink health watch with BLE, multi-wavelength PPG, motion and skin-temperature sensing, protected LiPo power, magnetic charging, and local data logging.

ESP32-based hexapod controller with two PCA9685 PWM drivers, 18 external MG90S servo ports, HC-SR04 interface, and isolated logic/servo 5 V power rails from a 2S LiPo.

INTERCEDE A1 controller hardware with protected power rails, dual Ethernet/PoE domains, isolated machine interfaces, secure storage/timekeeping, and three strictly separated GND domains. Schematic audit/build only; PCB layout intentionally deferred.

Four-port USB-C HID translation/accessibility prototype with controller host input, console-facing HID device output, PC configuration/debug, and dedicated USB-C power input.

Production-readiness engineering review of the ESP32-C5 Node Cluster V2 EasyEDA design, including schematic, PCB, Gerbers, BOM, pick-and-place, power, RF, and battery safety.

High-end 2-channel USB Audio Class 2.0 measurement interface for Smaart/REW use, with XMOS digital audio, isolated converter domain, smart encoder/LED UI, precision mic input, DAC line output, loopback ADC, phantom power, and protected USB-C power input.

Integrated PoE lighting-control PCB with 802.3bt PoE input, isolated 24V/3.3V power, Ethernet control, MOSFET dimming, DALI interface, and sensor inputs.

Modular high-end stereo preamp with selectable analog/DSP tone control, MUSES72320 volume control, MCU interface, and linear power rails.

2U 10-inch rackmount 12V distribution power supply for Dell server PSUs, with 12 managed boost-module slots, per-slot current monitoring, temperature logging, MCU supervision, and optional Ethernet metrics.

Panel-connected home energy monitor with non-invasive branch current sensing, whole-home power measurement, and smart outlet/switch integration for appliance-level energy visibility.

USB-C powered ESP32 WiFi water flow meter for a 3/4 inch PVC pipe using an external 12V RS485 ultrasonic flow sensor, protected power input, 3.3V logic, status LEDs, and programming/reset support.

Dual-node 500 kbps CAN wheel speed sensing and DAQ system with STM32G431, protected automotive power, sensor and DAQ peripherals

Production-intent ESP32-S3 handheld controller with USB-C sink power, ST7789 SPI TFT, 5-way controls, class-D speaker output, and factory test pads on a 4-layer PCB.

Requirements: -Daytime Operation Only -Track Bee Input/Output Directionality -Connects to House via WiFi TODO: -Connect EN high or low on MPPT IC -Finish Routing -Check Fill Thing Features: -MPPT Solar Power Conditioning -96% efficient IR LED Drive Next Version Feature Wants: Microphone!

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Ruggedized battery-powered PeakNode 1 LoRa PWAN node with SX1262 LoRa mesh over SPI, LTE Cat-M1/NB-IoT modem, GNSS, LPCNet-capable audio path, USB-C charging and LiFePO4 power management. Targets a 4-layer 90 mm x 60 mm IPC Class 2 layout with 3.3 V main and 1.8 V I/O rails, dual SMA antennas, two RGB status LEDs, three tactile buttons, low-leakage power architecture for sub-10 uA sleep, and defined RF keep-out zones under the LoRa and LTE antenna regions.

High-level recreation of the ThirstIQ Cap wiring diagram using an ESP32-WROOM-32 with AMS1117-3.3 regulated battery input, inline ON/OFF switch, four touch input headers on IO32/IO33/IO25/IO26, shared I2C OLED and RTC on IO21/IO22, UART debug/programming header on TXD0/RXD0, BOOT and RESET pushbuttons on IO0 and EN, buzzer on IO4, common 3V3/GND distribution, and PCB preparation for a 160 mm x 100 mm 4-layer layout. Layout intent includes clean 3.3 V power distribution, local decoupling for regulator and ESP32, accessible external headers/buttons, short clean BOOT/EN traces, shared I2C routing, touch-signal separation from noisy power and buzzer traces, and ESP32 antenna keepout.

Bluetooth RC car controller using ESP32-WROOM-32E, TB6612FNG dual H-bridge, XL4015 5V buck module, DC barrel battery input, dual 2-pin motor screw terminals, 1000uF VM bulk capacitor, 100nF decoupling, 10k EN pull-up, 30 mil power traces, 10 mil signal traces, and ESP32 antenna edge keep-out.