ESP8266 development board + ink screen reader with LED backlight

@甘草酸不酸
Introduction: esp8266 development board + licorice ink screen reader eda copy board (LED backlight added)
2023/06/16: Repair the ESP development board, streamline the components.
The whole is composed of three pcbs, upper, middle and lower. The firmware uses
 
 
the upper pcb
 
 
motherboard
 
 
lower pcb of licorice boss
 
 
 
①DIY process:
1. Proofing (board production) free
 
2. Purchase components (the price of pdd on Taobao is relatively cheaper than the original matching order) The budget is about 100
 
3. Welding (soldering corresponding components in corresponding positions) The tools needed here  
are recommended:
Electric soldering iron * 1: (starting price 8.9/buy the cheapest, at most 10 yuan, it is not recommended to buy more expensive ones)
Tin wire: This thing is expensive and the cheap one is not easy to use. It is recommended to go to school. Solder paste can be used to replace
the upper and lower dividing lines. These are two sets of necessary tools for welding.
220v heating table*1 (starting price 3.9/budget about 5 yuan)
Solder paste*1: (starting price 7.8/buy the cheaper one, buy the low temperature one which is friendly to novices, about 10 yuan)
Needle: (starting price 6.41*10 pieces/the kind for injections, the inner diameter of the needle can be 0.6-1mm, if you don’t know how to choose, buy a yellow needle, flat head is recommended, if you don’t have it, grind it yourself)
Flux: (also called solder oil, starting price 8.6*2 boxes, buy branded ones, there are many fakes, it will be used for welding small chips, it increases the fluidity of tin and makes welding easier) Welding
: When welding small components, squeeze solder paste with the needle and put it on the heating table to burn. Plastic plug-ins are easy to burn out, so they are soldered with a soldering iron.
 
4. Tested normally, assembled the finished product .
 
 
 
 
② About proofing:
In order not to waste space, the top plate is added to the esp8266 development version. Solution
1: Mainboard + top plate + bottom plate (tested, can be proofed normally)
Solution 2: Mainboard and bottom plate splicing + top plate (it is not clear whether the splicing can pass the review, test it yourself)
 
 
 
 
 
③ Special materials
 
 
 
 
 
 
④ Actual picture
The motherboard in the picture is version 1, which is similar to the current motherboard. The motherboard of this project is version 2.
The first version was modified on the basis of Licorice's PCB in order to be lazy, so it is impossible to proofread for free. In order for you to proofread for free, I copied the board again with eda to get version 2. The
first version has been verified to be fine, and version 2 should be fine (still proofing)
 
 
 
 
 
 
The E029A01 screen firmware and burning tool come from Licorice
without drainage. It took half a month to draw the board and wire it. If you like it, please support it. Give a thumbs up.
Thank you JLC for providing free proofing