Search found 8912 matches
- Tue Mar 26, 2024 2:25 am
- Forum: ESP32 Arduino
- Topic: Seems to program but won't run code
- Replies: 4
- Views: 285
Re: Seems to program but won't run code
Just to check, C7/C8 are not populated on your board, right? (They shouldn't be, a capacitor there will interfere with USB)
- Tue Mar 26, 2024 2:21 am
- Forum: ESP-IDF
- Topic: ESP32, UART2 uart_write_bytes, no serial output
- Replies: 6
- Views: 345
Re: ESP32, UART2 uart_write_bytes, no serial output
Yes, that should happen. (Although you should *not* connect the 3.3V line, as it's an output on both the devboard and FTDI board side.) Can you sanity-check your setup by connecting the Tx and Rx of the FTDI board together (disconnect them from the ESP32) and typing something on the minicom connecte...
- Tue Mar 26, 2024 2:16 am
- Forum: ESP-IDF
- Topic: Using ADC1 triggers the watchdog
- Replies: 3
- Views: 219
Re: Using ADC1 triggers the watchdog
Can you try to change over to the newer driver, see if that makes a difference?
- Tue Mar 26, 2024 2:11 am
- Forum: Hardware
- Topic: Which Esp32 should be chosen in terms of current draw at the time of data reading?
- Replies: 2
- Views: 106
Re: Which Esp32 should be chosen in terms of current draw at the time of data reading?
If you only take the measurement to accumulate them to later send as a batch, any chip with a low-power coprocessor may be able to do that; that CPU tends to use a fraction of what the main chip uses. I'd suggest the ESP32-C6 in particular for that as we improved the low-power coprocessor by a lot i...
- Tue Mar 26, 2024 2:04 am
- Forum: General Discussion
- Topic: What are hardware issues behind Vl6180x didnot light up or blink?
- Replies: 2
- Views: 269
Re: What are hardware issues behind Vl6180x didnot light up or blink?
Can you post your source code? Do you get any messages on the serial terminal that may lead us in the right direction? Checked all your connections to see if they're in the right locations and connect properly? What did you try to debug the issue by yourself already?
- Mon Mar 25, 2024 1:16 pm
- Forum: ESP-IDF
- Topic: ESP32, UART2 uart_write_bytes, no serial output
- Replies: 6
- Views: 345
Re: ESP32, UART2 uart_write_bytes, no serial output
Well, if you have a devboard, the USB-to-serial chip that is n that is likely hardwired to GPIO1 and GPIO3. In other words: if you have serial communication on GPIO16 and 17, the chip won't have any connections to those pins and won't see the serial output.
- Mon Mar 25, 2024 2:41 am
- Forum: ESP-IDF
- Topic: Why is it not good practice to call esp_wifi_connect() after esp_wifi_disconnect()?
- Replies: 11
- Views: 87410
Re: Why is it not good practice to call esp_wifi_connect() after esp_wifi_disconnect()?
Because esp_wifi_disconnect() doesn't disconnect WiFi and then return; rather it tells the WiFi stack to initiate a disconnect. The WiFi stack will then in the background go through all things needed to disconnect gracefully (e.g. inform the AP that the connection is broken) and will finally return ...
- Mon Mar 25, 2024 2:00 am
- Forum: ESP32 Arduino
- Topic: [ESP32 Dev Kit] ADC pin readings always HIGH with external battery connected
- Replies: 2
- Views: 183
Re: [ESP32 Dev Kit] ADC pin readings always HIGH with external battery connected
The reference voltage for the internal ADC is not 3.3V, it's about 1.1V, with an internal attenuator that can scale the input voltage down to that range if needed. You're probably better off changing your voltage divider to divide the battery voltage to something around 0.5V and using 0DB as attenua...
- Mon Mar 25, 2024 1:55 am
- Forum: ESP-IDF
- Topic: ESP32, UART2 uart_write_bytes, no serial output
- Replies: 6
- Views: 345
Re: ESP32, UART2 uart_write_bytes, no serial output
Just to check: you also re-wired your USB-to-serial thing to connect to the new GPIOs?
- Mon Mar 25, 2024 1:52 am
- Forum: ESP-IDF
- Topic: i2s_pdm example - accessing raw pdm data
- Replies: 2
- Views: 250
Re: i2s_pdm example - accessing raw pdm data
Note that you may be able to work around this by configuring the I2S peripheral in normal (I2S) mode with the correct parameters for the PDM serial format; you should be able to receive the raw samples that way (but you won't have access to the decoded samples as the decoder isn't used.)