With just a Raspberry Pi Pico, an analog switch and an op amp, you can build a powerful SDR receiver covering the LW, MW and SW bands. Capable of receiving signals from halfway around the world.
Introduction: With 485 interface, Quectel EC600N-CN module is used as the communication module, and a 20pin custom interface is reserved.
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Introduction: This work is an entry for the 8th National Youth Science Popularization Innovation Experiment and Works Competition
Introduction: With the help of this event, we will create an open source simulated duck. The remote control signal is transmitted using 4G. In theory, it can be remotely controlled at an unlimited distance.
Introduction: HMI-7I0-800480-A is a large-screen development board based on the Air722UG_NMM module design
Introduction: HMI-7I0-800480-A is a large-screen development board based on the Air722UG_NMM module design
Introduction: Kunlun Mirror Multi-Function Positioning Development Board is a newly launched 4G+GNSS positioning two-in-one series of demonstration boards by Hezhou. The main control adopts Hezhou’s classic 4G Cat.1 module Air724UG, and the GPS is compatible with 1612 universal package and Hezhou Air530. Series of small package positioning modules.
Introduction: Use the lowest cost to build a decent 4g remote control car. The esp8266 receives instructions through the MQTT protocol and achieves unlimited distance control. It can be controlled through APP and remote control.
Introduction: Wood + glass tube, nice~ I have been very busy recently, so the code and documents will be uploaded after sorting them out in the past few days~ Don’t worry~
Introduction: The Allwinner H5 development board is based on the open source Allwinner H5 TV box. The TV interface is retained, onboard WIFI, 4 USB outputs, 1 HDMI output, onboard microphone, audio output and LCD5110 screen interface.
Introduction: WeChat applet + Alibaba IoT platform + Hezhou Air724UG builds a serverless IoT system, mobile IoT device side, Hezhou Air724UG, lithium battery power supply, relay control, digital switch value collection, analog information collection, 485 communication and other functions. Measurement and control functions.
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
The hardware design adopts upper and lower layer design. The upper layer is the control circuit and the lower layer is the dual receiving circuit. The interface design is based on LVGL.