Libraries for interfacing ESP32 with MFRC522 RFID reader.
Libraries for interfacing ESP32 with MFRC522 RFID reader.
This library is being ported from original Arduino repo by Miguel Balboa.
Development is still in progress.
Full documentation in a week or two.
This repo is no longer maintained by me but PRs and forks are welcome. Sorry for any inconvenience.
Hello,
spi_master: spi_device_queue_trans(657): rx length > tx length in full duplex mode
Every time I swipe the RFID card with reader i got this error and ESP32 restarting.
Could you help me to find out the issue @blmhemu
I tried this lib, but it doesn't work.
RC522 isn't recognized.
`I (174) cpu_start: App cpu up.
I (192) heap_init: Initializing. RAM available for dynamic allocation:
I (199) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM
I (205) heap_init: At 3FFB2A50 len 0002D5B0 (181 KiB): DRAM
I (211) heap_init: At 3FFE0440 len 00003BC0 (14 KiB): D/IRAM
I (217) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (224) heap_init: At 400892D8 len 00016D28 (91 KiB): IRAM
I (230) cpu_start: Pro cpu start user code
I (248) cpu_start: Starting scheduler on PRO CPU.
I (0) cpu_start: Starting scheduler on APP CPU.
Is connected device MFRC522 ? If yes, check the wiring again.
Restarting in 5 seconds...
Restarting in 4 seconds...
Restarting in 3 seconds...
Restarting in 2 seconds...
Restarting in 1 seconds...
Restarting in 0 seconds...
Restarting Now.
ets Jun 8 2016 00:22:57
rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0018,len:4
load:0x3fff001c,len:5756
load:0x40078000,len:0
load:0x40078000,len:13904
entry 0x40078fd8
I (28) boot: ESP-IDF v3.1-dev-386-g7d13e3f 2nd stage bootloader
I (29) boot: compile time 16:58:57
I (29) boot: Enabling RNG early entropy source...
I (35) boot: SPI Speed : 40MHz
I (39) boot: SPI Mode : DIO
I (43) boot: SPI Flash Size : 4MB
I (47) boot: Partition Table:
I (50) boot: ## Label Usage Type ST Offset Length
I (58) boot: 0 nvs WiFi data 01 02 00009000 00006000
I (65) boot: 1 phy_init RF data 01 01 0000f000 00001000
I (73) boot: 2 factory factory app 00 00 00010000 00100000
I (80) boot: End of partition table
I (84) esp_image: segment 0: paddr=0x00010020 vaddr=0x3f400020 size=0x081c0 ( 33216) map
I (105) esp_image: segment 1: paddr=0x000181e8 vaddr=0x3ffb0000 size=0x021f8 ( 8696) load
I (108) esp_image: segment 2: paddr=0x0001a3e8 vaddr=0x40080000 size=0x00400 ( 1024) load
`
The function PCD_communicateWithPICC() returns STATUS_TIMEOUT. This is caused by the interruption of the timer. I tried to change the polarity of both antennas and increase the signal power.
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