Based on ESP32, HC-SR04 ultrasonic sensor
The CircuitSetup Split Single Phase Energy Meter is an affordable, accurate remote energy monitoring device for your entire home. It monitors energy usage in real time, independent of power company meters, and can be easily connected to any wireless microcontroller (such as ESP8266 or ESP32) to transmit energy data to programs such as EmonCMS. It can also be used to monitor solar systems to track the amount of electricity you generate from the sun. It uses a secure current transformer clamp to sample current - no AC wiring required.
The basic Escornabot can be programmed to perform a series of actions using the robot's buttons. From this point of view, imagination is the only limit on possibility.
Protues simulation example (8051)-PWM temperature adjustment.rar
2 Layers PCB 38 x 41 mm FR-4, 1.6 mm, 1, HASL with lead, Green Solder Mask, White silkscreen;
A good source code for stm32f4 oscilloscope, which can use 3-channel ADC to measure waveforms and display the waveforms on the screen and also display the amplitude.
Diansai source code smart home management system
2-layer PCB 9 x 11.4 mm FR-4, 1 mm, 1, HASL with leads, blue solder mask, white silkscreen; very small buffer for WS2813 LED strip.
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
2012 Heilongjiang Province Electronic Design and Production Competition Intelligent Fire Fighting Car Program
It's common for computer users to bend over in front of a screen, which can eventually lead to back problems. There are various gadgets on the market that solve this problem by constantly reminding users to sit up straight, but most of them are not fun. So I made a fun little tool for this problem.
YugenFlow v2 is a compact, easy-to-use, low-power smart thermal sensor board that uses low-resolution thermal sensors to detect the presence of people and determine whether they are moving in a given direction. The sensor determines the direction along an axis, the physical meaning of which depends on how the sensor is mounted. YugenFlow does not require motion to detect presence, but can use it to determine orientation. The sensor can detect and "track" up to two people simultaneously from a distance of approximately 40 centimeters. It's also very fast.
Intelligent farmland supervision system USART1 sends text messages USART3 uploads data UART4 receives Zigbee data
PCB for clipping onto Guillemot MAXI Gamer 3D Voodoo graphics accelerator. The common memory size for these cards is 4 MB. With the help of PCB you can get Voodoo up to 8 MB.
StereoPi is an open source stereo camera based on Raspberry Pi. It can capture, save, live stream and process real-time stereoscopic video and images. StereoPi opens up countless possibilities in robotics, AR/VR, computer vision, drone instrumentation, panoramic video, and more.
2 Layers PCB 10 x 16.5 mm FR-4, 1 mm, 1, HASL with lead, White Solder Mask, Black silkscreen; WS2813 buffer and repeater for long range serial transmission