Search found 9 matches
- Mon Aug 24, 2020 7:35 am
- Forum: ESP32 boards
- Topic: How to reset cycled ESP32? "Device or recource busy"...
- Replies: 7
- Views: 7952
Re: How to reset cycled ESP32? "Device or recource busy"...
Oh, God! You're my savior! Thank you, it works!
- Mon Aug 24, 2020 6:53 am
- Forum: ESP32 boards
- Topic: How to reset cycled ESP32? "Device or recource busy"...
- Replies: 7
- Views: 7952
Re: How to reset cycled ESP32? "Device or recource busy"...
vitaly@L521X:~$ esptool.py --port /dev/ttyUSB0 erase_flash esptool.py v2.8 Serial port /dev/ttyUSB0 Traceback (most recent call last): File "/usr/local/bin/esptool.py", line 3201, in <module> _main() File "/usr/local/bin/esptool.py", line 3194, in _main main() File "/usr/local/bin/esptool.py", line...
- Mon Aug 24, 2020 5:44 am
- Forum: ESP32 boards
- Topic: How to reset cycled ESP32? "Device or recource busy"...
- Replies: 7
- Views: 7952
How to reset cycled ESP32? "Device or recource busy"...
I was make mistake while programs ESP32 and now it cycles with no point to stop. Esptool and picocom says "Device or resource busy" and connection fails. Is it possible to reset it or fully erase flash in this case?
- Fri Aug 07, 2020 3:57 am
- Forum: Programs, Libraries and Tools
- Topic: OneWire crc8 function usage
- Replies: 1
- Views: 1500
OneWire crc8 function usage
Foolish question. Who can show usage of onewire crc8 function? Which params this function gets? Can't find by myself...
- Sun Jun 21, 2020 9:54 am
- Forum: ESP32 boards
- Topic: Is there any Serial listener onboard?
- Replies: 3
- Views: 2687
Re: Is there any Serial listener onboard?
That is my tested variant. I used a class to collect all functions and to make one object to work with UART. Listener is listed below. def listener(self): for attempt in range(12): # 12 secs to wait an answer start = time.time() # Passing a second while start == time.time(): pass if self.any() == 0:...
- Tue Jun 16, 2020 6:34 am
- Forum: ESP32 boards
- Topic: Is there any Serial listener onboard?
- Replies: 3
- Views: 2687
Is there any Serial listener onboard?
Hi! I need to connect GSM to ESP32 via serial communication. Some serial AT-commands sends answer too fast, some of them takes some time. If actions to write command to serial and read answer follows step by step some commands sends answer too be late. Sleep command can`t solve this problem cause va...
- Tue Jun 16, 2020 3:10 am
- Forum: ESP32 boards
- Topic: Esp32-S2 port
- Replies: 4
- Views: 5031
Re: Esp32-S2 port
Is this question means availability of Serial2 port? Yes, it works. Use from machine import UART uart = UART (2, *****) # ***** - means desired communication speed uart.init (................) # init mode Look this http://docs.micropython.org/en/latest/library/pyb.UART.html Only use 'machine' instea...
- Thu Jun 04, 2020 9:36 am
- Forum: ESP32 boards
- Topic: How can I do use RX2/TX2 ports to extra serial communications?
- Replies: 3
- Views: 1986
Re: How can I do use RX2/TX2 ports to extra serial communications?
Thanks! I would try this.
- Thu Jun 04, 2020 4:23 am
- Forum: ESP32 boards
- Topic: How can I do use RX2/TX2 ports to extra serial communications?
- Replies: 3
- Views: 1986
How can I do use RX2/TX2 ports to extra serial communications?
Hi! I can`t find answer by myself. Is it possible?