STM32+HC-05 Bluetooth module learning and use

HC-05 Bluetooth serial communication HC05 module is a high-performance master-slave Bluetooth serial port module. It is a PCBA board integrating Bluetooth function. It is very convenient for short-range wireless communication. It can be seen from a treasure merchant that Bluetooth can be used in many ways. Here I use Bluetooth host connection ...

Posted by thyscorpion on Fri, 14 Jan 2022 19:06:47 +0100

DialogBLE chip: OTP read / write, otphader

The BLE chip of Dialog basically has OTP (one time programmable) memory, that is, the memory written at one time. Once written, it cannot be modified. For example, DA14531 has 32KB OTP memory. It is mainly used to write curing programs and save some important factory parameters. The following mainly describes how to read and write OTP memory an ...

Posted by iii on Wed, 29 Dec 2021 16:49:51 +0100

nrf52 air upgrade

1, Overview 1.1 OTA DFU DFU(Device Firmware Update) is firmware upgrade, and over the air is firmware upgrade through wireless connection. As long as the DFU is realized through wireless communication, it can be called air upgrade, including WiFi / Bluetooth / NFC/Zigbee. You can also use wired methods for air upgrade, such as serial port, US ...

Posted by AnarKy on Wed, 08 Dec 2021 21:43:19 +0100