msp430g2553 electronic waste revival and reuse

bbslucky

msp430g2553 electronic waste revival and reuse [Copy link]

 

I just started, and I bought a bunch of second-hand electronic price tags on a certain fish. The ink screen is 2.13

The disassembly introduction of this board is not repeated here, please see the link

https://www.mydigit.cn/forum.php?mod=viewthread&tid=169620

Because the 1.3 oled screen I have is broken, I want to use this screen for display

According to what is said on the Internet, I first tried using a USB to TTL converter to connect RTS and DTR, but it didn't work (after all, this method has ready-made things and costs less money)

It's a headache. Should I buy an adapter board separately? It costs 8 yuan plus postage. I also have to remove the FPC cable. It's troublesome.

I took a piece apart, studied it, and tried the flying line, but it didn't work

Then I did some research and found a launchpad for msp430g2et on a certain website. It cost 40 RMB including postage.

There is a jumper in the middle, just take it out, connect it, and connect it to the motherboard

test-》sbwtck

rest-》sbwtdio

vcc-》3.3

gnd-》gnd

iar opens the great test program, downloads and debugs it, and it's done

To use the remaining pieces, you only need to remove the battery module without damage, connect the wires and burn the program.

There is NFC on the board, let's see if anyone can use it

okhxyyo

You want to play with NFC, right? @lehuijie @ddllxxrr @北 @lb8820265

I have the impression that these netizens have played NFC before. You can ask them

bbslucky

Make full use of old boards, it is too troublesome to dismantle

dcexpert

Recommend an ink screen to see if it can be DIY

bbslucky

Search for electronic price tags on a certain fish website. They were 2.13 yuan each, but now they are about 8 to 10 yuan each. They were half the price before.

bbslucky

dcexpert published on 2020-8-12 20:54 Recommend an ink screen and see if it can be DIY

Taobao password has been sent to private message

bbslucky

I uploaded the code

nmg

Do you want to play with it yourself? If you want to buy devices, you can participate in the forum's ongoing element16 welcome event.

Free postage for first order of new users and any amount: https://en.eeworld.com/bbs/thread-1136370-1-1.html

freebsder

It is indeed very troublesome to disassemble the machine and install the wires. It is difficult to do it yourself even with the schematic diagram, and it is even more troublesome if it is done by a third party.

bbslucky

But I can't find the manual for the 256k flash now. Does anyone have it? GD25VQ21BT. I asked and they said it's too old. The new one is already 2M.

alan000345

It looks like it's done well. The problem I encountered is a minor one, which can be solved by referring to other people's code.

bbslucky

I just started playing with hardware, so my description is definitely not accurate. The RF is A7106, 2.4g FSK/GFSK 500Kbps... So... it should be considered WIFI instead of NFC?

bbslucky

The uploaded information is still under review... I can't post it now

bbslucky

The display driver should use IL3895

bbslucky

DIY a burning clip, convenient

jinzhouwd

How is the msp430g2et board wired? Which jumpers have been removed? Can you tell me the steps to burn the program (preferably with pictures)? Thank you

Chsier

bbslucky posted on 2020-8-14 22:26 But now I can't find the manual for the 256k flash. Does anyone have it? GD25VQ21BT. I asked them and they said it's too old. The new one is already 2M

256KB = 2Mbit, this should be 2M