7-way remote control relay module

Introduction: Use two 315MHz remote controls to control this relay module. It can be used in various scenarios that require simultaneous control of two channels. The power supply is 8-30v.

Schematic PCB

Low-cost Bluetooth code scanning payment module

Introduction: Use the Bluetooth scan code payment module of Pay Now, which is used in: scan code payment socket, washing machine scan code payment, various amusement vehicles scan code payment, various engineering vehicles scan code payment, mahjong machine scan code payment, air purifier Scan the QR code to pay, scan the QR code to pay for massage chairs, etc.

Schematic PCB

The Great Wave off Kanagawa

Introduction: The Great Wave off Kanagawa

Schematic PCB

Cai Bingdundun

Introduction: The super cute Bing Dundun can be used as a school card~

Schematic PCB

NFC_Card

Introduction: An NFC card with a more beautiful and smooth appearance

Schematic PCB

1420MHz PCB Yagi Antenna

Introduction: After actual testing, I found that the S parameter was not very good and failed. I have made a new one. The project link is in the article. The board material is RF4, the interface is SMA, the gain is 8.85dBi, and it is a 4-unit PCB Yagi antenna resonating at 1420MHz.

Schematic PCB

Si24R2(E)2.4G Wireless

Introduction: 2.4GHZ wireless radio frequency communication can be used on student time cards and parking management system pdf document si24r2e.pdf

5.8G dual twin rhombus antennas

Introduction: 5.8G dual twin rhombus antennas. Sourced from public information on the Internet. The actual measured effect is close to that of a 14db flat panel. Looking forward to your draw distance test

Schematic PCB

Mijia 433 gateway

Introduction: Use the cheap 433 device with long transmission distance to trigger the smart linkage of Mijia APP

Schematic PCB

Cube-016_Fancy ESP32S2 development board

Introduction: The fancy ESP32S2 development board Cube series 016 project (deprecated standard)

Schematic PCB

1420Mhz ANT

Introduction: The initial version of the 1420Mhz PCB Yagi antenna has been sampled and tested. For subsequent versions, you can refer to another expert’s https://oshwhub.com/bi6mht/1420MHzde-PCBba-mu-tian-xian

Schematic PCB

RTplay1.35 XL2380_DevKit

Introduction: XL2380 module development board, with supporting routines and blog posts.

Schematic PCB

2.4G Yagi Antenna

Introduction: Improved based on the existing antenna on the forum, the original antenna is connected to https://oshwhub.com/kxxxxc/yagi_ant

Schematic PCB

Dormitory access control-RC522

Introduction: Using stm32 master control, adding a low-power Bluetooth module and a fingerprint sensor, you can use a card, fingerprint or wireless to open the dormitory door

Schematic PCB

PN532

Introduction: PN532 IC card reader with serial port

Schematic PCB

minipcie to pcie

Introduction: minipcie to pcie adapter board

Schematic PCB

remote control car

Introduction: A simple remote control car that uses Hummingbird Wireless Ling-T3A as the transmitter module and Ling-R1 as the receiver.

Schematic PCB

BGU7031 Evaluation Board for Set Top Box Low Noise Amplifier

Schematic PCB

BGA3012 Demonstration Board, 5 MHz to 300 MHz 12 dB Gain Inverting Amplifier Application

Schematic PCB

BGA3012 Demonstration Board, 40 MHz to 1006 MHz Push-Pull Amplifier Application

Schematic PCB