Search found 125 matches

by GeorgeFlorian1
Mon Feb 08, 2021 1:41 pm
Forum: ESP32 Arduino
Topic: RFID1356MIFARE with ESP32 over UART = possible ?
Replies: 0
Views: 111

RFID1356MIFARE with ESP32 over UART = possible ?

Hello. I am interested in integrating the RFID1356MIFARE with the ESP32-EVB an using it as a card reader. The first step was to connect the RFID to an USB hub using a mini-USB cable and selecting UART mode (both LEDs blinking at the same time). The second step was to disconnect it from USB and conne...
by GeorgeFlorian1
Mon Feb 08, 2021 12:52 pm
Forum: ESP32 Arduino
Topic: Getting a PN532 NFC to work on UART
Replies: 1
Views: 3683

Re: Getting a PN532 NFC to work on UART

This is a summary of getting a PN532 to work on the UART to help other who might have the same problem. I used this arduino library for the PN532 https://github.com/elechouse/PN532 It basically worked first time on the SPI but I only had 3 pins left so tried to switch to UART 2. Changed this in the...
by GeorgeFlorian1
Fri Feb 28, 2020 10:22 am
Forum: ESP32 Arduino
Topic: OLIMEX ESP32-EVB-EA won't boot when powered by 5V
Replies: 0
Views: 1762

OLIMEX ESP32-EVB-EA won't boot when powered by 5V

Board: ESP32-EVB-EA Rev.H Platform: PlatformIO Core 4.2.1 (https://postimg.cc/QFhtrwt2] The circuit above is composed of a 220V to 12V PSU and a 12V to 5V switching power supply The measured output is ~5V. I've connected the ESP to a 5V power source. If I boot up the ESP without connecting it to a m...
by GeorgeFlorian1
Fri Feb 21, 2020 10:07 am
Forum: ESP32 Arduino
Topic: Can I use an USB Keyboard with RS232 on ESP32 ?
Replies: 5
Views: 2412

Re: Can I use an USB Keyboard with RS232 on ESP32 ?

find and try PS2 keyboard arduino lib, or find arduino usb host module and library ... https://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20200220135457&SearchText=usb+host+arduino https://www.google.com/search?client=aff-maxthon-maxthon4&channel=t27&q=usb%20host%20esp32 But why wouldn't...
by GeorgeFlorian1
Thu Feb 20, 2020 8:53 pm
Forum: ESP32 Arduino
Topic: Can I use an USB Keyboard with RS232 on ESP32 ?
Replies: 5
Views: 2412

Re: Can I use an USB Keyboard with RS232 on ESP32 ?

This keyboard AND this usb converter as USB device(slave) Cannot connect to each other https://electronics.stackexchange.com/questions/49140/what-exactly-are-the-differences-between-a-usb-host-and-device Locate the arduino usb host module ... So I can't do anything with that keyboard and any ESP32 ?
by GeorgeFlorian1
Thu Feb 20, 2020 11:19 am
Forum: ESP32 Arduino
Topic: Can I use an USB Keyboard with RS232 on ESP32 ?
Replies: 5
Views: 2412

Can I use an USB Keyboard with RS232 on ESP32 ?

Hello ! I need to implement that keyboard to that ESP32. The keyboard has USB and I found a USB to RS232 converter. Should I try and do that or it will be easier to use a Raspberry ? My ESP board: https://www.olimex.com/Products/IoT/ESP32/ESP32-EVB/open-source-hardware The keyboard: https://www.alie...
by GeorgeFlorian1
Tue Dec 17, 2019 9:22 am
Forum: ESP32 Arduino
Topic: How to send a signal through 2 wires using rmt.h ?
Replies: 5
Views: 2340

Re: How to send a signal through 2 wires using rmt.h ?

Goerge, Oops, I read through that too quickly. Here is another try an transmitting: https://www.codeproject.com/Articles/1250921/Wieganduino-Generate-Wiegand-Codes-with-Arduino I thought it would be necessary to invert the second line from the first. This shows how to wiggle each line in code. Tom ...
by GeorgeFlorian1
Fri Dec 13, 2019 8:56 am
Forum: ESP32 Arduino
Topic: How to send a signal through 2 wires using rmt.h ?
Replies: 5
Views: 2340

Re: How to send a signal through 2 wires using rmt.h ?

Take a look here: https://www.arduinolibraries.info/libraries/yet-another-arduino-wiegand-library In the in file there is a readme that describes the protocol. Maybe the code could be adapted to your project. Tom Meyers This is at the beginning of the readme: # Yet Another Arduino Wiegand Library A...
by GeorgeFlorian1
Thu Dec 12, 2019 2:23 pm
Forum: ESP32 Arduino
Topic: [SOLVED] How to send a signal for a set amount of time ?
Replies: 6
Views: 2699

Re: How to send a signal for a set amount of time ?

I have moved the discussion to a new thread:
viewtopic.php?f=19&t=13503&p=53201#p53201

This can be closed or deleted.

Thank you.
by GeorgeFlorian1
Thu Dec 12, 2019 2:20 pm
Forum: ESP32 Arduino
Topic: How to send a signal through 2 wires using rmt.h ?
Replies: 5
Views: 2340

How to send a signal through 2 wires using rmt.h ?

Board: ESP32-EVB OS: Linux Mint Hello ! For the past week, I have been trying to send this binary number: 01100000101111001011111000 through two wires, emulating the Wiegand Protocol, to a Card Reader. Wiegand Protocol starts with both pins HIGH. When I send a 0, W0 pin is pulled LOW for usually 20-...

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