W489202ASN1_Ultrasonic sensor schematic diagram

Based on ESP32, HC-SR04 ultrasonic sensor

Schematic PCB

W487304AS1C1_garage board

1-layer PCB 50.1 x 79.9 mm FR-4, 1.6 mm, 1, tinned with leads, blue solder mask, white silkscreen;

Schematic PCB

atmega8-328 prototype board: good voltage filtering function

This board was created for the mcudude library and has good voltage filtering, reducing reset time via a c10 capacitor (10nF!!) on the dtr line of a ch340 system. It would be nice to solder a precision socket under the x1 oscillator, it gives you the opportunity to try different frequencies (useful for rs232 communication for example)​

Schematic PCB

POGO ISP Micro: Small and reliable programming adapter for AVR ISP

Do you need a small ISP to program your onboard AVR device? POGO ISP Micro is the right solution!

Schematic PCB

OpenFlops V1: Hardware open source floppy drive emulator/emulator

OpenFlops is a hardware open source floppy drive emulator/emulator inspired by the ubiquitous Gotek hardware. It is designed to run FlashFloppy firmware.

Schematic PCB

Lattice ICE40 HX4K FPGA breakout board

Breakout board for Lattice HX4K FPGAs with 10 PMOD connectors and onboard microcontroller for programming and communication via USB.

Schematic PCB

110/220VAC optically isolated zero-crossing detector module for DIN rail bracket mounting with 3.3V or 5V output - ideal for Arduino, ESP32/ESP8266

Detects Zero Cross point of AC supply (110/220VAC) and outputs a 1ms square pulse at 3.3V or 5V. 72mm x 20mm for DIN rail carrier mount.

Schematic PCB

1117 Simple board for voltage regulator

2 Layers PCB 14.8 x 24.8 mm FR-4, 1.6 mm, 1, HASL with lead, Green Solder Mask, White silkscreen;For SMD 1117 Set Voltage O/P Regs - LED Indication

Schematic PCB

10-channel level converter with Raspberry Pi connector

A small add-on board for the Raspberry Pi that I have designed specifically to solve the constant problem of shifting levels on sensors

Schematic PCB

10x10cm 1.27mm perforated board

2-layer PCB 100 x 100 mm FR-4, 0.8 mm, 1, tinned with leads, green solder mask, white silkscreen;

Schematic PCB

10KHz-30MHz Mini WIHIP AKTIF Antenna

10KHz-30MHz Mini WIHIP AKTIF Antenna

100 QFP to DIP

2-layer PCB 28 x 132 mm FR-4, 1.6 mm, 1, tinned with leads, green solder mask, white silkscreen;

Schematic PCB

Arduino development board GIGA RI WiFi based on STM32H7

Schematic PCB

Smart Gate Drive Coupler Evaluation Board

This reference design provides design guidelines, data, and more for the smart gate drive coupler evaluation board.

Schematic PCB

Power Multiplexer Circuit

In this reference design, a power multiplexer circuit with 2 inputs and 1 output is implemented on a small printed circuit board (PCB). Using MOSFET gate drive circuit ICs, eFuse ICs, Zener diodes, and small package MOSFETs selected from Toshiba's various product lines, an ideal diode with BBM and MBB switching is created.

Schematic PCB

Open source C-mount lens USB industrial camera (source code, PCB, design and production instructions, etc.)

There are three boards in total, USB, FPGA and Sensor board. The FPGA board features a Lattice Crosslink NX LIFCL-40 and the required power regulator, and the USB board features a CYUSB3014 USB 3.0 SuperSpeed ​​controller.

Schematic PCB

ESP32+RP2040 two-in-one design board (schematic and PCB)

Schematic PCB

Hardware circuit realizes SPI to Ethernet 10BASE-T

It introduces in detail how to build an SPI to 10BASE-T to realize network data sending and receiving. 10BASE-T uses two differential pairs: one for transmission and one for reception. Each pair is coupled through a transformer and the signals are differential and Manchester encoded. All schematics and diagrams are open.

Schematic PCB

Homemade flexible capacitive sensor

By CNC engraving a PCB in the following manner, the curved pad can perform capacitive sensing in 3 different directions and ultimately detect the 3D position of the finger.

Schematic PCB

High resolution magnetic rotary encoder based on RP2040

This is a mature development board combined with a magnetic rotary encoder, which uses a Raspberry Pi RP2040 microcontroller with a base resolution of 36, expandable to 36,000 steps per revolution.

Schematic PCB