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RN4870%Unknown Device% meaning Hi all, Just saw this message after rebooting the module and entering command mode:%REBOOT% $$$%Unknown Device% CMD The modules are two and they are working for at least 3 months - never got the message till now. This is the first time i see this message(only on the one of the modules, even they are backed with exactly the same firmware). The message appears on every reboot - not just once, but the device is fully functional.
There is nothing mentioned for%Unknown Device% in the docs - if someone knows why i got this - please post. Thanks in advance. Bit late to this one but I also saw the%Unknown Device% message from a RN4871 part. I was doing a lot of probing and power-cycling on a first build of the host PCB so not sure what caused it. It's the firmware update tool on the product page under Documentation, you will also need to grab the firmware files: Instructions for performing the update are given in the, page 43.
Note, you do not need the Pictail setup to do this - just pull down the System Configuration pin (P20) and connect TX,RX to a low-voltage serial interface. Be aware though that P20 seems to be sampled coming out of reset so needs to be low when RSTN is released.
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Let me know how it goes but as I said it didn't fix the%Unknown Device% issue, just other locked-up configurations.
ESP32 is a series of low cost, low power system on a chip microcontrollers with integrated Wi-Fi and dual-mode Bluetooth. The ESP32 series employs a Tensilica Xtensa LX6 microprocessor in both dual-core and single-core variations and includes in-built antenna switches, RF balun, power amplifier, low-noise receive amplifier, filters, and power management modules. The ESP32 is created and developed by Espressif Systems and is manufactured by TSMC using their 40 nm process.
It is a successor to the ESP8266 microcontroller. Information & Resources. Related subreddits. Guidelines. Please keep submissions on topic and of high quality. Civility & Respect are expected. Please report any uncivil conduct.
Memes and other low effort jokes are not acceptable forms of content. Please follow proper. I need testing/comments on BLE for MicroPython. I'd especially like comments from people with specific use cases that I hadn't thought of. I only have a couple of BLE devices with which to test this, and I was hoping the community here could help out. GAP, advertising, GATTS, and GATTC are implemented, including notify/indicate, and descriptors for GATTC.
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I'm successfully connected to a Polar heart-rate monitor with this. Also, can send/receive using gatttool, and two ESP32 devices can talk to each other. Comments on the API are welcome. Development Github issue is (attached to µPy-esp32 main repo) Compilation and installation are the same as the are for the regular ESP32 µPy port. As of this writing, this fork/branch is up-to-date with the mainline ESP32 port of MicroPython.
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Note that I occasionally see pop up, but this is an issue that's fixed in the newer versions of the IDF, but since µPy is tied to a specific IDF hash, it will be an infrequent issue for now. Edit: Fixed in updated IDF. Received signal strength indication In telecommunications, received signal strength indicator (RSSI) is a measurement of the power present in a received radio signal.
RSSI is usually invisible to a user of a receiving device. However, because signal strength can vary greatly and affect functionality in wireless networking, IEEE 802.11 devices often make the measurement available to users. RSSI is often done in the intermediate frequency (IF) stage before the IF amplifier. Downvote to remove.
Is your IDF hash up-to-date? If you see something like this, there's a problem:. WARNING. The git hash of ESP IDF does not match the supported version The build may complete and the firmware may work but it is not guaranteed ESP IDF path: /home/epoulsen/workspaces/esp-idf Current git hash: d8c0b505f686db8c0f5b5de864918272c1d30836 Supported git hash: 1e0710f1b24429a316c9c34732aa17bd3f189421 To fix it, go to your ESP-IDF repo directory, and issue git checkout where is the long string after Supported git hash:. Firstly, precede each code line with 4 spaces for code. I want to send sensor data from a machine via BLE to my iPhone. At the moment I do this with an Arduino and a HC-08 Bluetooth adapter.
I compiled and flashed your microPython fork and it is running on the ESP32, but when I try to use Bluetooth after importing 'network' I get the following error: import network bluetooth = network.Bluetooth Traceback (most recent call last): File ', line 1, in AttributeError: 'module' object has no attribute 'Bluetooth' Do you have any idea what the problem might be? I erased the ESP32 before I flashed the firmware. I also tried to manually flash the firmware via esptool.py Thanks in advance!