Search found 80 matches

by Jackli
Fri Jul 09, 2021 5:57 am
Forum: Hardware Projects
Topic: MicroPython example of TPYBoard development board control OLED display Chinese
Replies: 0
Views: 36051

MicroPython example of TPYBoard development board control OLED display Chinese

0x00 Preface I saw an article about TPYBoard v102 controlling OLED screen display, and after seeing it, I wanted to try to use OLED screen to display Chinese. Recently used the free time to fix this experiment, hereby share the experimental process and source code for future use. 0x01 Experimental ...
by Jackli
Thu Jul 08, 2021 8:01 am
Forum: ESP8266 boards
Topic: Fingerprint unlocking electronic lock based on ESP8266
Replies: 7
Views: 28184

Re: Fingerprint unlocking electronic lock based on ESP8266

What I mean is that from the outside it looks like the electronic lock is unlocked by the fingerprint, but in reality it is unlocked by other methods. For example, if an invisible button is added to the place where the finger is placed, it looks like the fingerprint is unlocked from the outside, but...
by Jackli
Thu Jul 08, 2021 2:08 am
Forum: ESP8266 boards
Topic: Fingerprint unlocking electronic lock based on ESP8266
Replies: 7
Views: 28184

Re: Fingerprint unlocking electronic lock based on ESP8266

I wanted to find a way to replace this recognition and make it "fingerprint recognition" with something else. Sorry not quite sure what you're asking? Do you have a suggestion for what "something else" might be... a touchscreen isn't going to be able to read a fingerprint, but you could, for exampl...
by Jackli
Wed Jul 07, 2021 9:40 am
Forum: ESP8266 boards
Topic: Fingerprint unlocking electronic lock based on ESP8266
Replies: 7
Views: 28184

Fingerprint unlocking electronic lock based on ESP8266

I recently saw an article about a simple fingerprint unlocking electronic lock project article, and I really want to make a change according to this article. The article is using a fingerprint sensor module, and I would like to change it slightly here. A fingerprint sensor module is not very cheap, ...
by Jackli
Tue Jul 06, 2021 3:27 am
Forum: Hardware Projects
Topic: Sensor experiment - LCD color adjustment
Replies: 0
Views: 37263

Sensor experiment - LCD color adjustment

MR Development Boards 1.54" LCD st7789 spi or other LCD can be used Method and description set_color(fg,bg): display color text RGB565: foreground view , background color set_color(color565(r,g,b),color565(r,g,b)) rgb: 0,0,0, : foreground color , background color RGB color mode is a color standard ...
by Jackli
Tue Jun 29, 2021 8:45 am
Forum: Drivers for External Components
Topic: MFRC522 RFID-Reader Class
Replies: 10
Views: 49942

Re: MFRC522 RFID-Reader Class

Hi there, I came to your topic from someone's recommendation. I've seen card reader projects using Arduino, but I want to finish it with ESP32, is there anything I should be paying attention to?
by Jackli
Tue Jun 29, 2021 8:43 am
Forum: General Discussion and Questions
Topic: MicroPython how to achieve communication between ESP32 + RC522 (read and write cards)
Replies: 4
Views: 29370

Re: MicroPython how to achieve communication between ESP32 + RC522 (read and write cards)

See this thread which seems quite a compact driver. I also looked at this Arduino library which is pretty hairy: nearly 2K lines of C. Clearly there is a lot more to RFID than meets the eye. Thank you so much! You are really a very kind person. It really helped me a lot! Once I'm done with this pro...
by Jackli
Mon Jun 28, 2021 5:27 am
Forum: General Discussion and Questions
Topic: MicroPython how to achieve communication between ESP32 + RC522 (read and write cards)
Replies: 4
Views: 29370

Re: MicroPython how to achieve communication between ESP32 + RC522 (read and write cards)

RC522 is an SPI module, so you can easily interface it with SPI pins of ESP32. You need to download its third-party library and you will find ready to run examples to test it out. Try those examples and share your results. Can I ask you for a link to a third-party library? I'm not quite sure if I c...
by Jackli
Mon Jun 21, 2021 5:27 am
Forum: General Discussion and Questions
Topic: MicroPython how to achieve communication between ESP32 + RC522 (read and write cards)
Replies: 4
Views: 29370

MicroPython how to achieve communication between ESP32 + RC522 (read and write cards)

I have a module of ESP32 with Micropython firmware, I want to try to connect with mrfc522 to read/write cards, I have read some related articles on the web, https://www.instructables.com/How-to-Di ... gh-LCD-Wi/
but not using Micropython, I hope someone can give an idea.
by Jackli
Tue Jun 15, 2021 7:45 am
Forum: General Discussion and Questions
Topic: MicroPython Thread Problem?
Replies: 2
Views: 1437

Re: MicroPython Thread Problem?

stijn wrote:
Tue Jun 15, 2021 6:08 am
Which port? Have you seen e.g. viewtopic.php?f=16&t=8900&p=50268&hilit ... ing#p50268?
Thank you so much for your reply, I haven't read this post yet and I think this might solve my problem, thanks a lot!