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NRF52810 transmission speed test Recently, there was a project to use the NRF52810 Bluetooth IC, so I bought a board to test. The current demand of the project is not very high, and the transmission speed can reach 1KB/S. The test results of everyone on the Internet are very good. It can be tested to 80KB/S in 1M mode, so I also want to try an ...

This article will introduce the theory and practical application of I2C communication mode from theory to practice. The theory part mainly describes the physical structure of I2C bus, the relevant provisions in its protocol and several different communication processes. In the practice part, we will take a display module commonly used in var ...

catalogue The first part is the preface 1. Preparation knowledge 2. Commissioning purpose 3. Wiring mode of module and single chip microcomputer Part II Engineering Code 1. Code function description 2. SIM900A code for sending English SMS 3. SIM900A code for sending Chinese SMS 4,main.c document code The third part is the summary 1. ...

Pre episode review Single chip microcomputer HLK-W801 transplanted Nes simulator (I) I've finished the transplantation of the program. Today, I'll try the key operation. At least I can jump and eat a mushroom Key recognition For the identification of keys on w801, I use an omni-directional key keyboard I used before, The keys are collected ...

1, What is a capture counter? For example, we want to know the duration of a high-level input to a pin (the signal frequency is actually calculating the duration of the signal input). The timer in stm32 can certainly realize this function. The timer we just mentioned is not accurate at this time. It should be called counter, because the reali ...

Programming flow: Reset write command word: 0xcc (skip ROM instruction), 0x44 (start temperature conversion) Skip the command word: because DS18b20 is a single bus device, and a single bus can mount many devices, ROM is used to store the id number of the device. Delay 700~900ms and wait for the completion of temperature conversion Reset wri ...

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Project requirements Many times, we want to send commands to our MCU through the upper computer. We can control the MCU to carry out some operations. Generally, we have several methods, including serial port transmission, Bluetooth transmission, WIFI transmission such as UDP and TCP, etc. In this paper, C# is used to write the upper comput ...

catalogue background Implementation method development environment code implementation reference resources background When using STM32 for project development, two channels of input acquisition are required. At the beginning, using different timers for acquisition can meet the requirements. However, when a new demand comes, multiple PW ...

Introduction to experiment The external interrupt control LED is on and off, whether the buzzer sounds and whether the relay is adsorbed. Experimental schematic diagram Note: the schematic diagram is taken from the introduction of Puzhong 51 single chip microcomputer Experimental principle Statement: part of the experime ...