esp8266 clock

first edition

The original project comes from the big guy, https://oshwhub.com/Lengff/lattice-clock . This article has been modified based on the original design.

1. Change the serial port chip to ch340c

2. The USB port was changed to microUSB (because I happened to have this one)

3. The onboard touch chip was removed and replaced by a ready-made module. The link is [Taobao] https://m.tb.cn/h.fLCwuIf?tk=NBwp2Tp26IP [Uxin Electronics] TTP223 touch button module self-locking Click/capacitive touch switch sensor" click the link to open it directly (actually the onboard one is pretty good, I was crazy at the time)

4. Add the dht11 temperature and humidity sensor, connect it to io16, and modify the indicator light to the esp8266 onboard indicator light.

5. The shell file includes printed parts and acrylic cutting files. Pay attention to the quantity of 3D printed parts. The number of feet required is 2. The acrylic specification is black and transparent 2mm. You need to purchase M2 screws and nuts. (No sample test results yet)

second edition

1. Rewire, increase the width of the power line, modify the ams1117-3.3 circuit, and reduce the occurrence of screen flickering;

2. Modify the clock chip to rx8025, which is cheaper, and replace the tantalum capacitor to reduce costs;

3. Re-added the author’s original onboard touch, which is very easy to use! ! !

4. Adjust the width between dot matrix screens (little effect)

5. Optional new micro building block shell, only 12 yuan (3D printed shell costs about 50), size 6mm, link [ Taobao] https://m.tb.cn/h.fBu0GVC?tk=bRYI2s4u9Bt CZ0001 "Micro Diamond building blocks with small particles are compatible with Lego gear DIY pixel art bulk assembly puzzle cartoon."
Click the link to open it directly. See the attachment for the micro-building block shell panel file.

The external dimensions of the board have not changed, and the original shell can still be used.