2.13-inch ink screen clock-MSP430

Introduction:

The idea for this work comes from DUCK's ink screen clock, which was completed in October last year. Original open source link ink screen clock 2.0 - Lichuang EDA open source hardware platform (oshwhub.com)

After more than 4 months of stable testing and bug fixes, it is now open source. For communication purposes. To prevent profiteers from selling software, only firmware is provided and needs to be activated for use. Join the group 215204131 and contact the group owner to provide PCB photos and Lichuang account name to activate .

Using RX8025T clock chip. And SHT30 high-precision temperature and humidity sensor or replaceable temperature and humidity sensor in the same package. The sleep power consumption is 3 ua. The time, temperature and humidity are refreshed every minute when waking up. Brush everything every night at 0 o'clock. The power consumption is about 1maH per day. Theoretically, the CR2032 battery can be used for 200 days, and the CR2450 battery can be used for 600 days (it is recommended to purchase high-quality batteries based on the actual quality of the battery).

Works picture:

If you need more renderings, just go to a certain fish and search

Front rendering

Back rendering

PCB renderings

PCB renderings enlargement

AA battery version renderings

Production tutorial:

Most of the components on the PCB come from the original price tag circuit as shown in the figure below.

The drive part can be completely replaced

The buttons adopt the original weather station button 3*6*3.5 specifications.

SHT30 is about 5 yuan each

The price tag of a certain fish is 5 yuan each

rx8025T disassembled parts 1 piece

Connect 34P to the cable holder

Among them, if you make the CR2032 version, you need to purchase cr2032 battery shrapnel. There are many copper pillars in M2*4.

If you make the CR2450 version, you need to buy cr2450 battery shrapnel. This shrapnel is difficult to buy. Then the copper pillar specification is M2*6 four.

Requires four gaskets M2 *5*1.0 

 Required screws: M2*4 screws on the front and M2*2.5 screws on the back

All of the above were purchased by a certain treasure.

For the AAA battery version, use the battery box. Search for the plug-in battery box on Taobao and fix it with two M2 screws.

Production notes:

1. You need to put a layer of tape on the back of the screen cable, otherwise the thickness will not be enough.

2. All component sizes are subject to silk screen printing

3. Do not power off or reset during the activation process, otherwise the activation code will be modified. If the device is sleeping, just press the setting button to wake it up.

It is recommended to make a 2032 battery version which looks better.

PCB board thickness is 1mm.

If you don’t want to make it, you can go to a certain fish to buy the finished product and search for the 2.13-inch ink screen clock. 

Use sbw mode to download the program. If you need to use BSL to download, please modify the circuit to lead to other pins.

Download software and firmware are placed in the attachment.

Download screenshot

Usage tutorial:

  Move to station b 

[Tutorial on using the ink screen clock - Bilibili] https://b23.tv/ZXedoa
[Tutorial on using the ink screen clock - Reset function - Bilibili] https://b23.tv/SjhprE

  Among them, both the setting interface and the activation interface sleep after 30 seconds of no button operation.

  The key operation logic of the activation interface and the setting interface are consistent.

  Provide the verification code to the group owner to obtain the activation code.

Precautions:

1. Do not use junk batteries or cheap batteries! ! !

2. Please do not sell privately.

3. If you encounter any problems during use, please raise them in the group.

Solve BUG:

1. Long-term refresh afterimage problem

2. Abnormal crash problem when the battery power is normal.