"Play Board" + Shared Bicycle Control Panel-Hardware Modification

chenzhufly

"Play Board" + Shared Bicycle Control Panel-Hardware Modification [Copy link]

 

 

I just received the shared bicycle control panel I purchased yesterday, as shown below:

Onboard resources:

1. Main control chip: STM32F103RET6 ;

2. GPS module: MAX-M8Q-0-01 U-BLOX small size and low power consumption GLONASS + Beidou dual-mode GPS module;

3. GPRS module: SIM800C operates at GSM/GPRS 850/900/1800/1900MHz, which can realize the transmission of voice, SMS and data information with low power consumption;

4. Clock chip: PCF8563 is an industrial-grade multi-function clock/calendar chip with extremely low power consumption and built-in I2C bus interface function launched by PHILIPS.

5. What is that black lump with three legs? Is it an inductor? Buzzer? Can any expert give me some advice?

6. The rest seem to be power processing circuits

Having these chips is still worth 10 yuan. I mainly want to learn from Alibaba Cloud. It feels good and meets my expectations.

The first reaction after getting the board was to see if it could work, so I found the download interface and soldered it, and used stlink to see if I could scan the chip, but it didn't work. An Internal command error occurred, what should I do?

After a long time of struggling, I found out that I need to use the STM32 ST-LINK Utility tool to turn off the read-write protection, set it in target–>option byte.

Don’t panic if you encounter an error, just click Confirm.

I am preparing to perform the erase operation. When I cancelled the read protection just now, I forgot to check the sector protection as well, so an error occurred again.

Just finish what needs to be done, and everything will go more smoothly.

Enter keil, find a program to download, success!

Now you can write programs and adjust codes. Next, add the serial port. Keep going!

This experience: you can set chip read protection, which is estimated to increase the difficulty of copying boards.


This content is originally created by EEWORLD forum user chenzhufly . If you want to reprint or use it for commercial purposes, you must obtain the author's consent and indicate the source

sylar^z

The board costs 10 yuan? Where did the host get it?

54chenjq

The black triangle inductor is used for boosting voltage, Brother Zhu, sexy.

chenzhufly

sylar^z posted on 2020-3-14 12:47 The board costs 10 yuan? Where did the OP get it?

Salted Fish

sylar^z

chenzhufly posted on 2020-3-14 15:38 Salted Fish

Great value! It's great to receive it

chenzhufly

sylar^z posted on 2020-3-14 17:31 Great value! It's great to receive it

Come and pick up the bargain [Shared bicycle GPS board special price, 30,000 pieces, processing price 8/piece] After making this description, open Xianyu eh4n1hQq024 and then open Xianyu

邦bang

Link? Link

threetigher

chenzhufly posted on 2020-3-14 15:38 Salted Fish

What are you planning to play?

Is it possible to just remove the module?

chenzhufly

threetigher posted on 2020-3-14 23:03 What do you plan to do? Is it only possible to disassemble the module?

Any ideas?

threetigher

chenzhufly posted on 2020-3-15 10:23 Any ideas?

Install the dog

threetigher

chenzhufly posted on 2020-3-14 17:48 Come and pick up the bargain [Shared bicycle GPS board special price, 30,000 pieces, processing price 8/piece] After making this description, open Xianyueh4n1hQq024& ...

There are 7￥

threetigher

gprs module like with eSIM

threetigher

54chenjq posted on 2020-3-14 12:52 Black triangle inductor, used for boost, brother Zhu, sexy.

If it is boosted, please check if there is a boost IC on the front and back of the board? Or MCU boost?

led2015

This is still a bit difficult. For those who are not familiar with the board, do you need to buy a computer dedicated to it?

hotsauce1861

It turned out to be a board game. I finally found it.

飞鸿浩劫

Inductor of anti-theft device