Weather ink screen-add clock chip

Introduction: weather, TXT reader, clock, distribution network, front light, a variety of cool shells

Schematic PCB

ikea relay

Introduction: ikea relay module

Schematic PCB

ESP8266-01S smart switch and 433 random sticker switch-01

Introduction: ESP8266-01s and 433 receiver + physical switch

Schematic PCB

J20 model aircraft remote control

Introduction: Model aircraft remote control developed based on STM32F103C8T6 blue board and MDK standard library

Schematic PCB

[Hangshun Training Camp] Smart Racing Remote Control

Introduction: Try to develop a multi-channel remote control using Hangshun chip HK32F103CBT6A.

Schematic PCB

Second PCB modification

Introduction: cool, handsome, and awesome business card

Schematic PCB

Based on STC89C52RC transponder

Introduction: A mini wireless answering device based on STC89C52RC microcontroller. It has an infrared receiving circuit, EEPROM memory chip-AT89C02, temperature and humidity sensor SHT30-DIS-B, RGB three-color LED light, active buzzer, and independent buttons.

Schematic PCB

STM32F103C8T6 fixes bug based on open source verification

Introduction: Based on open source, corrected errors and improved version

Schematic PCB

FM wireless microphone/TV sound transponder - based on QN8027 FM transmitter chip

Introduction: The course design is based on the article "FM Transmission of Beacons" by Professor Zhuo Qing on CSDN. It is basically drawn according to the above principle. With the addition of a headphone holder, one end of the male-to-male audio cable can be plugged into the board and the other end into the computer. The computer audio signal is emitted and can be received by the radio.

Mini lolita control

Introduction: Mini Lolita Control

Schematic PCB

Track trolley version 2

Introduction: Wireless remote control crawler car based on STC8H1K16 microcontroller, NRF24L01 wireless module, FM1208S motor driver chip

Schematic PCB

Wireless remote control based on NRF24L01

Introduction: Based on STC8H1K16, NRF24L01 wireless remote control, the measured control is still very sensitive. Students in need can refer to it.

Schematic PCB

f103 flight control

Introduction: The board drawn according to the principles of Cai Zi’s open source will be printed and verified in the next month, and there will be video updates from Station B at that time

Schematic PCB

VCA821

Introduction: Controlled Gain Amplifier

Schematic PCB

op11

Introduction: First stage fixed gain circuit

Schematic PCB

opa22

Introduction: Second stage fixed gain circuit

Schematic PCB

MWC hollow cup flight control + loli control 4-channel reception (minor problems have been fixed)

Introduction: Design based on MWC flight control

Schematic PCB

pcb rack integrated mini loli receiver

Introduction: The small frame of the kingkong90GT 2.5-inch time-travel machine exploded, so I modeled the PCB frame according to the original frame and integrated the loli control receiver on the PCB frame to increase the aesthetics and integration. Next project: with warm and cold light adjustment The remote control fluorescent lamp is undergoing hard modification of the video k80 graphics card

Schematic PCB

[Continuing to fill in the pit] ESP8266_Card_Harriet

Introduction: [Continuing to fill in the hole] Based on giftina's open source sharing project "16 yuan to make an ESP8266 "business card" V1.2", a project to make small improvements to the USB interface and some other parts.

Schematic PCB

【Training Camp_Advanced Class】Socket for Mental Retardation

Introduction: Mobile APP realizes remote control

Schematic PCB