I also find that searching within the forum often fails (or just never finishes), and that Google searching is more likely to yield useful results.
It would be great, however, if the forum search feature could be fixed (improved).
Phil.
Search found 54 matches
- Tue Jun 25, 2019 8:49 pm
- Forum: General Discussion
- Topic: Forum search fails often
- Replies: 6
- Views: 6771
- Thu Jun 06, 2019 3:45 pm
- Forum: General Discussion
- Topic: Raw RF data
- Replies: 1
- Views: 3834
Re: Raw RF data
We are using ESP-NOW, but only sending broadcast packets. We are not defining any "peers", and so have a connectionless environment. (We implemented a source address in our proprietary packet data implementation so we could address individual devices, while maintaining a connectionless environment) ...
- Fri May 31, 2019 2:11 pm
- Forum: Hardware
- Topic: Will ESP32-WROOM-32U be damaged if operated without an antenna?
- Replies: 6
- Views: 8534
Re: Will ESP32-WROOM-32U be damaged if operated without an antenna?
Thank you, ESP_Angus. We have had similar results - meaning we have run without an antenna at various times without noticeable damage. But recently we noticed one unit that had unexpected (highly variable) RSSI readings - even with an antenna attached. Our theory is that the unit was operated withou...
- Thu May 30, 2019 8:58 pm
- Forum: Hardware
- Topic: Will ESP32-WROOM-32U be damaged if operated without an antenna?
- Replies: 6
- Views: 8534
Will ESP32-WROOM-32U be damaged if operated without an antenna?
Is it possible to damage the 2.4 Ghz transmitter if I transmit WiFi or BLE packets on a WROOM-32U without an antenna connected?
Phil.
Phil.
- Fri May 17, 2019 2:47 pm
- Forum: ESP-IDF
- Topic: ESPNOW Slower than expected RTT (Round Trip Time)
- Replies: 7
- Views: 15128
Re: ESPNOW Slower than expected RTT (Round Trip Time)
Awesome!
I am interested in the result of your further testing. We are also excited to have the higher performance, but am concerned that it may reduce reliability...
Phil.
I am interested in the result of your further testing. We are also excited to have the higher performance, but am concerned that it may reduce reliability...
Phil.
- Thu May 16, 2019 4:08 pm
- Forum: ESP-IDF
- Topic: ESPNOW Slower than expected RTT (Round Trip Time)
- Replies: 7
- Views: 15128
Re: ESPNOW Slower than expected RTT (Round Trip Time)
Unfortunately, the documentation is quite limited. And we have only tested this in the lab - we have not commited to changing the bit rate in production yet. Here is what I know: In `esp_wifi_internal.h` there is: /** * @brief enable or disable transmitting WiFi MAC frame with fixed rate * * @attent...
- Wed May 15, 2019 10:06 pm
- Forum: ESP-IDF
- Topic: Max BLE GATT Handles
- Replies: 2
- Views: 3313
Re: Max BLE GATT Handles
We have the same issue - and have had to change the #define in the IDF. Is there a better way?
Phil.
Phil.
- Wed May 15, 2019 8:56 pm
- Forum: ESP-IDF
- Topic: ESPNOW Slower than expected RTT (Round Trip Time)
- Replies: 7
- Views: 15128
Re: ESPNOW Slower than expected RTT (Round Trip Time)
I believe the default ESP-NOW bit rate is 1 Mbps. A 250 byte packet would take 2 ms just to send it over the air. So round trip that is a full 4 ms (just in "air" time). We are starting to experiment with increasing the ESP-NOW bit rate in order to reduce round-trip time, and are seeing large improv...
- Wed May 15, 2019 6:38 pm
- Forum: ESP-IDF
- Topic: How to schedule task to run at 2000hz?
- Replies: 2
- Views: 6136
Re: How to schedule task to run at 2000hz?
We have a similar requirement for running a Matlab Simulink model at 2 Khz. We implemented it as a task, but had the task wait on a semaphore. The semaphore is then "given" in a 2 kHz hardware timer interrupt. The idea is that every 500 us when the ISR occurs, it bypasses the RTOS and jumps to the t...
- Wed May 15, 2019 2:51 pm
- Forum: ESP-IDF
- Topic: Unity Unit Testing of Hardware (with CMock)
- Replies: 1
- Views: 3522
Unity Unit Testing of Hardware (with CMock)
I am using the Unity unit test framework in the IDF, and would like to provide fake data from hardware ports. (UART, SPI, GPIO, ADC, etc) Does any one have suggestions on how to write unit tests for functions that access ESP32 hardware? Has anyone used CMock, and have advice or opinions about it? Th...