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Homemade ESP8266 small TV

 
Overview

The small TV in this article is based on the ESP826612F module design. The software refers to the SD3 small TV open source project. All schematics and PCB designs are carried out using the domestic software Lichuang EDA. This time the small TV is designed using a modular design method, and the casing is Using PCB boards for production is convenient for friends who do not have a 3D printer at home to learn how to make. The material structure is streamlined, the cost is low, and the finished product is extremely playable. Compared with the open source part on the Internet, the main control part has added switches, anti-short circuit resettable fuses and power indicator lights, and replaced all 0603 chip components with 0805 chip components to facilitate manual welding, and the size of the board has been expanded. When it reaches 5cm*5cm (in fact, as long as it is within the size of ten times ten, everyone knows the reason), the LDO linear voltage regulator is replaced by the more common AMS1117-3.3V, and the serial port signal line is made as large as possible. Equal-length wiring ensures the stability of transmission. The antenna of the ESP8266 module extends out of the circuit board, which can ensure good reception of WIFI signals even if it is wrapped in a metal shell. Add M3 screw holes to facilitate the connection between modules. Compatible with battery and battery-free plug-in versions, lithium batteries are not necessarily required to use.
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Update:2025-07-06 07:34:31

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