Closed archerindigo closed 2 years ago
Previous commit pushed but the issue persist afterwards:
1109a4e5e69e3c25c18ef1af8b6fca9a6e6c93e3
Following comments on this issue, use hardware SPI and lower frequency. Then the reader is much more stable.
Hack to the library:
Adafruit_PN532::Adafruit_PN532(uint8_t ss) {
// Terry: Lower frequency from 1MHz to 100kHz with regard to issue #80 for ESP32
spi_dev =
new Adafruit_SPIDevice(ss, 100000, SPI_BITORDER_LSBFIRST, SPI_MODE0);
}
Issue regarding "unable to get firmware version" and "read fail after scanning 7-byte-UID tag" mentioned in #14 are also resolved by this way.
Commit: d29eed914cead9958d805bdc13ae6ac91b2ee012
Issue description:
If the NFC reader detect nothing for a while (~5 minutes), the reader will not read any card anymore. The problem won't fix by hard/soft reset the ESP32. Usually need to re-load the program with little bit of modification
Affected hardware:
Both the NFC readers in the charger/ battery dock of the electric box
Measurements attempted:
Direction of debugging: