SJA1110 100Base-T1 Multi-Gigabit Ethernet Switch Example Board

Schematic PCB

PCAL6524EV 24-Bit General IO Arduino ^® Shield

Schematic PCB

Arduino ^® Shield expansion board

Schematic PCB

PCAL6534EV 34-bit general-purpose IO Arduino ^® Shield expansion board

Schematic PCB

Tigard: an open source, multi-protocol, multi-voltage hardware hacking tool based on FT2232H

Tigard is an open source, multi-protocol, multi-voltage hardware hacking tool based on FT2232H. By combining commonly used pins, labeled harnesses, onboard level translation, and logic analyzer connections, it is specifically designed to connect to and communicate with low-speed interfaces on reverse-engineered hardware targets.

Schematic PCB

CANFDuino: The best platform for open source, CAN-bus Arduino projects

CANFDuino supports CANFD, the latest version of the CAN bus standard, which can accommodate speeds up to 5 Mbps. It has two local ports with DB9 connectors in a housing that can be mounted on your vehicle or installed in your own projects. The platform is designed for tinkerers, hackers, and industry professionals looking for a ready-made, open source CAN bus solution that requires little or no hardware assembly.

Schematic PCB

pmod-sd-dummy: virtual SD card connected to the host system via SDIO

​This design has a PMOD for the SD card to emulate the SD card to the host system.

Schematic PCB

pmod-quad-7segment: PMOD of four 7-segment digital tubes

A PMOD with a quad 7-segment display connected to a pair of 74hc595 shift registers. There are 3 tactile buttons.

Schematic PCB

TIDA-00333: Dual isolation, half-duplex RS485 repeater reference design, with built-in transceiver control

Suitable for long distance RS-485 networks. The design provides transient protection from the effects of ESD, EFT and surge transients as specified in the IEC 61000 transient immunity standard.

Schematic PCB

MAXREFDES1247: Tiny 12W DC-DC flyback converter using MAX17596

The MAXREFDES1247 is a miniature, 12V output, isolated power supply that can deliver up to 1A of load current.

Schematic PCB

Production Line Tool launched by Dialog

The software part of this tool (including the host computer) is not open source, but the schematic diagram and PCB related files are.

Schematic PCB

Changshu Polytechnic Water Lamp

Introduction: It mainly uses the multi-harmonic oscillation circuit of NE555 that can send out stable and regular signals as the signal benchmark to send signal pulses to the counting circuit. The mechanical language of the counter is converted into binary numbers, which are displayed by LED lights.

Schematic PCB

IQ overclocking card

Introduction: No matter how rubbish the computer configuration is, installing RGB light pollution will increase the light pollution performance by 30% - Picture Bar boss

Schematic PCB

LED light panel 12v

Introduction: LED light panel, the lamp beads are white light super bright 5D straw hat, IV: (med) 18000 VF (V): 3.0-3.2. The power supply should be 12V1A or above.

Schematic PCB

NE555 dimming circuit 1%~99%

NE555 dimming circuit 1%~99%

Schematic PCB

[Digital circuit] CD4017 running water lamp clock

Introduction: This output method is perfect for driving Nixie tubes. Unfortunately, we can’t afford it, so we can only use LEDs instead.

Schematic PCB

[Analog Circuit] Dormitory Magic Lamp Switch Dimming Circuit

Introduction: A low-end version of the magic lamp for dormitories, which is a USB lamp without a controller.

Schematic PCB

[Analog circuit] NE555 Ambilight RGB Lite version

Introduction: NE555 drives a simplified version of RGB. The waveform is somewhat different from the standard triangle wave.

Schematic PCB

[Analog circuit] NE555 steering gear tester circuit

Introduction: 50Hz is obtained by receiving power frequency radiation shaping, and the driving timing of the servo is formed through monostable state

Schematic PCB

"Simple" RGB light gradient using 555 chip

Introduction: The design uses 4 NE555s, 3 of which generate triangular wave signals that are output in sequence, and drive the LED with constant current through the transistor to make it gradually change. The other channel generates a PWM signal to control the LED brightness.

Schematic PCB