No im using ai thinker gp-02 kit

15 Replies

It depends on the kit, like what material it is going to have!

Ahmed•5mo ago

Hello everyone I am working on an IOT smart lock i want to integrate RFID RC522 module with it I am using ESP-IDF for this purpose Now the issue i am facing is that i have been using a library available on GitHub which i added as a component in my code i want to write a master password in block 1 and the username is block 2 of RFID TAG But the library doesn't have such a function. Can someone tell a better approach Thanks

nour_oud•5mo ago

🌟 Hey everyone! 🌟
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Thank you all for bringing your passion and energy! Keep shining, and let’s keep building DevHeads together! 🚀 Remember, now you can connect to the Leaderboard on Zealy and earn amazing rewards: ➡️ The Top 3 members will receive Adafruit Gift Cards worth USD 50. ➡️ Among the Top 10 contributors, we will raffle 1 Kit. For more information, check https://discord.com/channels/1130679493799977062/1268560760808669204 Keep up the great work, everyone! Let’s make this community thrive! 🚀

undefined.elf•5mo ago

@Nayel

Nayel•5mo ago

Nice! What kind of project are you planning to do with those MCUs?

undefined.elf•5mo ago

showpiece I am not an electronics expert and it is really hard to powering them up For now I will go with the f4 series

Nayel•5mo ago

try this video and this course these are really great :

Nayel•5mo ago

https://youtu.be/aVUqaB0IMh4?si=EI90iDXD4Y78E8tA

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Nayel•5mo ago

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LunchBoxHero•5mo ago

I’m trying to create a remote device where I’d like to use a battery and solar panel for the power. I’m wondering if there is anyway to wake up an ESP32 from a website/webserver/websocket or something similar. The goal is to run the device in sleep or deep sleep mode for most of the time conserving battery life. I’d be open to using a different micro processor.

Renuel Roberts•5mo ago

@LunchBoxHero Check the GitHub library for functions that interact with the RFID card. Look for a function that writes data to the card, If the library doesn't have a function to write to specific blocks, you can extend the library by adding a function to write to block 1 and block 2. Or you can use

#include "rfid_library.h" // Include your specific RFID library

void write_to_rfid_block(uint8_t block, uint8_t* data) {
    // Authenticate before writing
    if (rfid_authenticate(block)) {
        rfid_write(block, data); 
        rfid_stop_crypto();
    }
}

void write_master_password_and_username(uint8_t* password, uint8_t* username) {
    // Writing master password to block 1
    write_to_rfid_block(1, password);

    // Writing username to block 2
    write_to_rfid_block(2, username);
}

#include "rfid_library.h" // Include your specific RFID library

void write_to_rfid_block(uint8_t block, uint8_t* data) {
    // Authenticate before writing
    if (rfid_authenticate(block)) {
        rfid_write(block, data); 
        rfid_stop_crypto();
    }
}

void write_master_password_and_username(uint8_t* password, uint8_t* username) {
    // Writing master password to block 1
    write_to_rfid_block(1, password);

    // Writing username to block 2
    write_to_rfid_block(2, username);
}

LunchBoxHero•5mo ago

I think this is meant for @Ahmad

techielew•5mo ago

This is a good one for @Umesh Lokhande or @Edison_ngunjiri Anyone familiar with Arduino Opta? https://discord.com/channels/1130679493799977062/1230604933699600495/1268649808760143913

Renuel Roberts•5mo ago

Sorry for the mixup @LunchBoxHero Waking up an ESP32 directly from a website or web server isn't possible while it's in deep sleep, as it powers down most of its components, including the Wi-Fi. However, you can use an external interrupt, like a push notification from a server to a connected device such as an RTC module or a low-power microcontroller that would trigger the wake-up pin on the ESP32. Another option is to have the ESP32 periodically wake up on its own, connect to the server to check for any commands, and then go back to sleep if nothing is received. This way, you conserve battery life while still maintaining remote control. If you're open to a different hardware, you might consider low-power microcontrollers that have better power management for always-on connectivity.

Ahmed•5mo ago

@Enthernet Code is this Library available with esp idf

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No im using ai thinker gp-02 kit