Search found 4 matches

by ss3dev
Thu Apr 09, 2020 1:07 pm
Forum: General Discussion
Topic: Android BLE Write Timeout on ESP32
Replies: 7
Views: 2987

Re: Android BLE Write Timeout on ESP32

bumping up the loglevel on the nordic app confirmed that the app is indeed performing the write, immediately afterwards is the error 0x85. I bought an s9 for testing. We now have an S9, S10, PIxel 3 and an IOS device. for the S9 to work I did have to tweak some parameters. Unfortunately the S10 is s...
by ss3dev
Tue Apr 07, 2020 2:36 pm
Forum: General Discussion
Topic: Android BLE Write Timeout on ESP32
Replies: 7
Views: 2987

Re: Android BLE Write Timeout on ESP32

Here are the logs from the nordic app: https://imgur.com/a/mLppfu5 https://imgur.com/a/mLppfu5 The logs show the device connecting, connection parameters are updated. Once to an interval of 7.5ms, latency 0 and timeout 5000. I think these are the android defaults. Then parameters re updated again to...
by ss3dev
Mon Apr 06, 2020 3:24 pm
Forum: General Discussion
Topic: Android BLE Write Timeout on ESP32
Replies: 7
Views: 2987

Re: Android BLE Write Timeout on ESP32

I apologize, I mixed up the error code in the original post, we are seeing code 8: Timeout on writes from Samsung devices. Below are the full logs from a connection until disconnect using the nordic app on. The client connects, sets the MTU, and then attempts a write containing 50 bytes. Instead the...
by ss3dev
Fri Apr 03, 2020 1:00 pm
Forum: General Discussion
Topic: Android BLE Write Timeout on ESP32
Replies: 7
Views: 2987

Android BLE Write Timeout on ESP32

Hello, I am experiencing an issue with writing to a BLE characteristic from Android. I have an ESP-WROOM-32 dev board and am using esp-idf version 3.1. After negotiating an MTU higher than the default value a write operation with more than 20 bytes fails. From the Android client side the write succe...

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