Low-power USB-C powered environmental sensor node with a protected 5 V USB-C sink input, TPS26630 front-end protection for reverse/OVP/UVLO/OCP, efficient 3.3 V buck regulation, ESP32-C3 Wi-Fi plus BLE connectivity, and an I2C SHT41 temperature/relative-humidity sensor. The design targets robust operation from USB-C sources advertising 0.5 A to 3 A and is being completed as a schematic ready for PCB layout.

Template for Arduino Uno R3 Shield. Include an official pinout so you will always know Arduino names, the alternative roles of pins, which one is SDA, or SCL, etc. On PCB you can find the 3D model of the Arduino Uno R3 itself along with the board outline on the silkscreen. #Arduino #Uno #Shield #Template #project-template #project

Template for Arduino Uno R3 Shield. Include an official pinout so you will always know Arduino names, the alternative roles of pins, which one is SDA, or SCL, etc. On PCB you can find the 3D model of the Arduino Uno R3 itself along with the board outline on the silkscreen. #Arduino #Uno #Shield #Template #project-template #project

The circuit that will bring humans to Mars! Just kidding.. this is a pcb test board.

The TP4056 1A Li-ion Lithium Battery Charging Module with Current Protection – Mini USB is a compact device designed to charge individual lithium ion (Li-Ion) cells that lack their own protective circuit, such as 16550s, with a single cell capacity of 3.7V and 1 Ah or higher. This battery charging module employs the TP4056 charger IC and DW01 battery protection IC to provide a charge current of 1A, which will cease upon completion of the charging process. https://robocraze.com/products/tp4056-lithium-battery-charging-board #PCB #TP4056 #battery

Template for Arduino Uno R3 Shield. Include an official pinout so you will always know Arduino names, the alternative roles of pins, which one is SDA, or SCL, etc. On PCB you can find the 3D model of the Arduino Uno R3 itself along with the board outline on the silkscreen. #Arduino #Uno #Shield #Template #project-template #project

A simulated blinking LED circuit using an astable multivibrator a.k.a "flip-flop" as a square wave generator. It also includes PCB layout of the project.

NodeMCU V3 ESP8266 ESP-12E is WiFi development board that helps you to prototype your IoT product with few Lua script lines, or through Arduino IDE. The board is based on ESP8266 ESP-12E variant, unlike other ESP-12E, you won’t need to buy a separate breakout board, usb to serial adapter, or even solder it to a PCB to get started, you will only need a usb cable (Micro USB).

The circuit that will bring humans to Mars! Just kidding.. this is a pcb test board.

The circuit that will bring humans to Mars! Just kidding.. this is a pcb test board.

Daddy's first PCB

ArduTouch is really just an Arduino Uno clone with a small amplifier & speaker, with a PCB touch keyboard, a couple of extra buttons, and a couple of pots (for playing music and controlling the sounds). The ArduTouch Arduino Library is where the real magic comes from!

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

We will all have the same schematic diagram, let's be creative on what we can build on the pcb. List down all bugs you can find.

CheckIt is a daily habit tool. When you complete a habit, flip a switch, then an LED lights up. Future work will include wiring the 24pin FPC port to the Pico which causes an e-paper screen to display a message when a switch is flipped. This PCB runs using a Raspberry Pi Pico and has plans to be battery powered similar to a digital alarm clock.

NodeMCU V3 ESP8266 ESP-12E is WiFi development board that helps you to prototype your IoT product with few Lua script lines, or through Arduino IDE. The board is based on ESP8266 ESP-12E variant, unlike other ESP-12E, you won’t need to buy a separate breakout board, usb to serial adapter, or even solder it to a PCB to get started, you will only need a usb cable (Micro USB).

A simulated blinking LED circuit using an astable multivibrator a.k.a "flip-flop" as a square wave generator. It also includes PCB layout of the project.

NodeMCU V3 ESP8266 ESP-12E is WiFi development board that helps you to prototype your IoT product with few Lua script lines, or through Arduino IDE. The board is based on ESP8266 ESP-12E variant, unlike other ESP-12E, you won’t need to buy a separate breakout board, usb to serial adapter, or even solder it to a PCB to get started, you will only need a usb cable (Micro USB).

Template for Arduino Uno R3 Shield. Include an official pinout so you will always know Arduino names, the alternative roles of pins, which one is SDA, or SCL, etc. On PCB you can find the 3D model of the Arduino Uno R3 itself along with the board outline on the silkscreen. #Arduino #Uno #Shield #Template #project-template #project

The circuit that will bring humans to Mars! Just kidding.. this is a pcb test board. Hi

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.

Mach 1 overdrive clipping-section mod with the 12-position rotary clipping selector integrated onto the main PCB, D4/D5 omitted, PCB-mounted Volume/Drive/Tone controls, and a 125B-oriented control layout without Zero IOD branding.

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

BF-SR-PCBv1 signal relocation PCB for ESP32-S3-DEVKITC-1-N32R16V

Professional-grade ultra-low-power 52 mm circular BLE smartwatch PCB with biomedical sensing, AMOLED display, USB-C charging, and 6-layer RF/mixed-signal layout constraints.