Search found 42 matches
- Thu Mar 21, 2019 7:50 am
- Forum: General Discussion
- Topic: IDF i2c issues, unable to find device on bus
- Replies: 8
- Views: 12943
Re: IDF i2c issues, unable to find device on bus
Though this is an old post, I wish very much to know whether/what solution did you find. I've experienced exactly the same trouble while I am trying connecting to BNO 080. I also found i2c in arduino ide, but not idf. here is the post I described my scenario, but no lock no answer. https://www.esp32...
- Sat Mar 16, 2019 9:44 am
- Forum: General Discussion
- Topic: idf i2c scanner could not find device(while arduino ide can)
- Replies: 1
- Views: 5254
idf i2c scanner could not find device(while arduino ide can)
I used to program in arduino ide, and i2c works fluently. Wire.begin(22,21,400000); Wire.setClock(400000); Scanning I2C Addresses .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .....
- Fri Jan 11, 2019 6:56 pm
- Forum: Hardware
- Topic: When using Uart to pc,stopping ESP32 dev kit entering flash mode / how to get out of flash mode on pc side
- Replies: 5
- Views: 6398
Re: When using Uart to pc,stopping ESP32 dev kit entering flash mode / how to get out of flash mode on pc side
the temporary working solution is after flash the board, connect gpio0 to vcc, incase some other may find helpful
- Tue Jan 08, 2019 8:27 am
- Forum: Hardware
- Topic: Highest frequency of ESPNOW data transfer
- Replies: 1
- Views: 4251
Highest frequency of ESPNOW data transfer
while we are testing the highest fps of sending one byte through ESPNOW. We could n't even stably sending at 30fps. Worst will be around 7-9 fps, happen once couple second. The master will show this message once in couple second: Send Status: Success Sending: 124 E (16662) wifi: esf_buf: t=3 l=40 ma...
- Tue Jan 08, 2019 8:02 am
- Forum: Hardware
- Topic: When using Uart to pc,stopping ESP32 dev kit entering flash mode / how to get out of flash mode on pc side
- Replies: 5
- Views: 6398
Re: When using Uart to pc,stopping ESP32 dev kit entering flash mode / how to get out of flash mode on pc side
I wish this is the option, we tried different terminal, and only arduino work fine with a reset. Our own terminal is writen in c++ same, didn't work. Out of cards
- Fri Jan 04, 2019 12:02 pm
- Forum: Hardware
- Topic: When using Uart to pc,stopping ESP32 dev kit entering flash mode / how to get out of flash mode on pc side
- Replies: 5
- Views: 6398
Re: When using Uart to pc,stopping ESP32 dev kit entering flash mode / how to get out of flash mode on pc side
I have the same feeling, did you find any solution?
- Wed Jan 02, 2019 5:37 pm
- Forum: Hardware
- Topic: When using Uart to pc,stopping ESP32 dev kit entering flash mode / how to get out of flash mode on pc side
- Replies: 5
- Views: 6398
When using Uart to pc,stopping ESP32 dev kit entering flash mode / how to get out of flash mode on pc side
When using esp32 dev kit(we tried different brand/ model ,and the same happens). While uart connection is open, we click the "en" button at the same time without pressing "boot", the esp32 will enter flash mode, displaying, rst:0x1 (POWERON_RESET),boot:0x3 (DOWNLOAD_BOOT(UART0/UART1/SDIO_REI_REO_V2)...
- Thu Nov 29, 2018 6:58 am
- Forum: ESP32 Arduino
- Topic: UART/Serial.write with communication status return
- Replies: 1
- Views: 2943
UART/Serial.write with communication status return
while using ESP-NOW esp_err_tesp_now_send(const uint8_t *peer_addr, const uint8_t *data, size_t len) it will return ESP_OK while the message is successfully delivered. However, while using UART, int uart_write_bytes(uart_port_tuart_num, const char *src, size_t size) Return (-1) Parameter error OTHER...
- Thu Sep 27, 2018 8:59 am
- Forum: ESP32 Arduino
- Topic: BLE_notify demo stuck after less than a minute, and then disconnect
- Replies: 2
- Views: 4116
Re: BLE_notify demo stuck after less than a minute, and then disconnect
We 've tested write, it works for 300 seconds sofar without disconnection, sending bytes every 10 ms.
- Thu Sep 27, 2018 8:44 am
- Forum: ESP32 Arduino
- Topic: BLE_notify demo stuck after less than a minute, and then disconnect
- Replies: 2
- Views: 4116
BLE_notify demo stuck after less than a minute, and then disconnect
We are testing the BLE_notify example. We tested with two means of connection, from a ESP32 running BLE_client without turning on/off notification, and it will stuck. We also tested connection from "nRF connect" from an iphone, it also stuck. Any hint? I was thinking if BLE_notify can't work in 100f...