Important Note: You must connect your own SPI/ICSP programming header if you want to burn the Arduino bootloader to the MCU. SMD Manufacturing: Need a hotplate and solderpaste Good to haves: - Oscillator Decoupling Caps Expose UART via connector Programming Button Onboard LED Reset Button You don't have to populate everything! Only these are mandatory: Reset Button Find the reference schematic here: https://www.arduino.cc/en/uploads/Main/ArduinoNano30Schematic.pdf

This project is a TCS3200D-TR color sensor circuit utilizing resistors, capacitors, LEDs, a JST connector, and a transistor for control. The color sensor allows for precise color identification and its output is accessible through a JST connector. #industrialSensing #colorSensor #referenceDesign #osramusa #template #reference-design

DIY handheld game console with EFM32TG11B120F, OLED 0.91" 128x32 I2C, 4 buttons (2 on each side), CR1220 battery connector, and USB Micro for charging. #Gaming #IoT #Microcontroller #EmbeddedSystems #EFM32

This project is a reference design for the VCNL3040 sensor interfaced via I2C. It includes a VCNL3040 ambient light sensor, a voltage regulator (AP2112K-3.3TRG1), an I2C level shifter using BSS138 MOSFETs, and necessary support components. Circuit interfaces through a JST connector. All components are powered by a 3.3V power source. #referenceDesign #industrialsensing #vishay #template #reference-design

Raspberry Pi 2, 3, 4 or 400 Model B+ connector with RPi board outline and mounting holes. good for Raspberry Pi Shield projects. Insulation Height 0.335" (8.51mm) Compatible part number: PPPC202LFBN-RC #RaspberryPi #HAT #RPi #template #project

sEMG-DAQ is a wearable 6 channel data acquisition unit for capturing surface electromyographic (sEMG) signals from human arm muscles using SJ2-3593D jack connectors while conditioning, digitizing, processing and transmitting them as sEMG data to an external AI accelerated board through an SM12B-SRSS IDC connector where AI models are run for various applications including robotic control, muscle signals medical assessment and gesture recognition. The board leverages an INA125P instrumentation amplifier together with filter stages utilizing LM324QT op-amps for conditioning and an STM32G4A1VET6 microcontroller for the digitization, processing and data transmission of the signals. Since AI models can only be as good as the data, the design of such a DAQ is necessary to ensure clean, reliable and real-time data for AI applications requiring sEMG data. The board also has USB-FS and JTAG to cater for debugging. The power (5V) is fed through a screw terminal and is regulated by two LDK320AM LDO regulators to offer 5V, 3.3V and 1.8V to meet the requirements of various components on the board.

Board for low power projects based on ESP32. It has I2C connector, one UART connector, boot and reset buttons and RGB led

Arduino Uno R3 shield + very basic H bridge driver and connector

Raspberry Pi 2, 3, 4, 5 or 400 Model B+ connector with RPi board outline and mounting holes. good for Raspberry Pi Shield projects. Insulation Height 0.335" (8.51mm) Compatible part number: PPPC202LFBN-RC #Raspberry_Pi #Shield #RPi #template #part

Wearable haptic glove main PCB with ESP32-S3 control, DRV2605L LRA haptic driver, modular TCS34725 ring-sensor connector, fingertip LRA connector, USB-C/LiPo power, and native USB programming.

Universal PWM Interface Module: 12 V automotive-input board for configurable ECU PWM input conditioning and open-collector fan-module output, with TVS/reverse-polarity/PTC protection, 5 V buck, 3.3 V LDO, selectable pull-up rails, inversion jumper, status LEDs, test pads, mounting holes, and DT13-08PA connector placeholder.

Carrier board for the RAK3312 ESP32-S3/SX1262 LoRaWAN module with USB-C 5 V input, 1 A 3.3 V rail, SEN66 sensor connector, RGB status LED, and reset control.

Industrial ESP32-S3 master gateway with Ethernet (W5500), LoRa 433 MHz, microSD storage, RTC, USB-UART console/debug interface (CP2102N), and isolated RS485 ports using ADM2587 transceivers. The design includes ESP32-S3-WROOM-1-N16R2 as the main controller, W5500 Ethernet, LoRa antenna interface, microSD connector, RTC circuitry, CP2102N USB-to-UART programming/debug console, SC16IS752 UART expanders, isolated RS485 channels, power regulation, ESD/surge protection, connectors, and mounting holes. Cellular/BG95/SIM functionality and true RS232 console hardware are not included; J1 is used only as the microSD card connector.

Compact USB dongle PCB for Midea air conditioners based on the mideahvac-dongle architecture, using an ESP32-C6 module, 5V UART level shifting, WS2812B status LED, USB-A appliance connector, and USB-C programming/power.

Multi-subsystem ESP32-S3 coffee maker/alarm controller board for a Coffee Waker appliance. The design uses an ESP32-S3-WROOM-1-N8R8 module as the main Wi-Fi/Bluetooth MCU, with USB-C 2.0 device connectivity through a USB4105-GF-A connector, 5.1 kΩ CC pull-downs, and USBLC6-2SC6 ESD protection on the USB D+/D− pair. Power architecture includes a 12 V input on a JST VH B4P connector, a TPS62932 buck regulator generating the 5 V rail, a TLV1117LV33 3.3 V LDO for MCU/logic power, and TPS22919 load switches for controlled 3.3 V/5 V peripheral rails. Functional blocks include an NAU7802 load-cell ADC on I2C with two differential load-cell channels, a MAX98357A I2S audio amplifier/DAC with speaker/output filtering, a microSD socket on SDIO, I2C/test headers, UART/programming header, and auxiliary JST VH connectors for wake-light or external loads. The high-voltage section includes 120 VAC input/output screw terminals, a 5 V SPST-NO relay rated 15 A / 240 VAC max, a 1 A fuse, MOV surge suppression, diode snubber, and a dedicated heater output terminal.

12V power distribution PCB: 50 mm × 100 mm board with one 5.5×2.5 mm DC input jack, four 5.5×2.1 mm DC output jacks, and four 3-pin fan connectors on a shared 12V/GND bus. Designed for 10A total input and 2A max per output connector.

Compact 40×40 mm ESP32-P4 digital night-vision monocular controller PCB with MIPI DSI display connector, MIPI CSI camera connector, USB-C external power, boot/reset buttons, and rear-side soft-power control.

2-layer mezzanine HAT for LILYGO T-SIM7600G-H R2 adding dual CAN, protected 12V-to-5V power, and vehicle connector interface.

Arduino Uno Smart Bin Status Shield: 2-layer JLCPCB-assembled Arduino shield with LEDs, buzzer MOSFET driver, reed-switch connector, and hand-soldered stacking headers.

JST XH Connector Header Through Hole 6 position 0.098" (2.50mm) #commonpartslibrary #connector #header #tht #JST-XH

Interface board connecting a 64-pin TE CMC connector 2209129-1 to a 64-pin TE ribbon header 1-5102154-2 with straight-through pin mapping from pin 1 to pin 64.

Industrial-grade RP2350B controller with W5500 Ethernet, 24V input power, isolated industrial I/O, RS485, USB hub, relay outputs, and robust connector protection for -40°C to +85°C consumer/industrial use.

Recreated ESP32 PCB project from uploaded Flux/Gerber/netlist files, with J_DWIN FFC connector target changed from 10-pin 0.5 mm pitch to 10-pin 1.0 mm pitch.

70x50 mm CNC-friendly raw-laminate XIAO ESP32S3 lapel audio recorder prototype with socketed XIAO, dual external INMP441 microphones, LiPo connector, button/status LED, and SD-card recording support. Layout prioritizes hand soldering, replaceable parts, wide traces, and generous isolation clearances over compactness.

12 V 2N2222 common-emitter audio amplifier PCB based on the uploaded reference diagram, with AC input coupling, adjustable base bias, emitter bypass, collector load, output coupling capacitor, and speaker connector.