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DHT11 module DHT11 is a wet temperature integrated digital sensor. The sensor includes a resistive humidity measuring element and an NTC temperature measuring element, and is connected with a high-performance 8-bit single chip microcomputer. Through the simple circuit connection of MCU and other microprocessors, the local humidity and t ...

1. Introduction to G4 series DMA First, introduce the DMA of G4 series. Although the G4 series of 32 is based on the M4 kernel, its DMA channel mapping is quite different from the common F407. First, paste some pictures in the reference manual: I don't know what you can think of after seeing these two pictures. I believe friends who have see ...

sketch: DS18B20 temperature sensor on the Blue Bridge Cup board, the communication mode is single bus communication (1-wire); At the same time, in the data package of the Blue Bridge Cup competition, a library file about DS18B20 (onewire.h, onewire.c) is provided, which has three functions: sensor reset [bit init_ds18b20(void)], write byte ...

1, nRF24L01 + module introduction   nRF24L01 + is a single-chip 2.4GHz transceiver suitable for ultra-low power wireless applications. NRF24L01 + is designed to operate in the global ISM band of 2.400-2.4835GHz.   to design a radio system using nRF24L01 +, only a single chip microcomputer (microcontroller) and some external pas ...

preface This blog is based on your own needs and the needs of the interview position, so I specially come to learn the two common communication protocols SPI and IIC again. The development board used here is STM32F03_MIN I also hope this blog can be of some help to you! IIC protocol I ² C. Usually read as "i-Party C", ...

I Basic characteristics of SDRAM 1. Internal memory bank-row-columnThere are four banks in total. Each bank has 213 rows and 29 columns, each of which is 16bit 2. Refresh cycle 8192refresh cycles/64ms, refresh one line every 7.8us on average 3. Introduction to data reading and writing and command sending SDRAM provides programmable read ...

Write in the front: it's purely personal opinion. If you don't agree, you're right! If it helps you, congratulations. Introduction to embedded MCU programming - Thinking Following the above, thinking is the foundation. On the basis of thinking, it will be easier to understand the structure. If you haven't read the previous article, you can ta ...

Single chip microcomputer DS18B20 Readers need to have a preliminary understanding of the DS18B20 data manual before reading. No more nonsense, go directly to DS180B20 timing DS18B20 timing Initialization timing /** * @brief Init_DS18B20()DS18B20 is a function that initializes DS18B20 to determine whether the sensor exists * ...

Notes of the 7th Blue Bridge Cup single chip microcomputer group national competition: After finishing this topic, I have a lot of feelings and some good ideas. I want to share them and consolidate them 1. Get rid of the dependence of flag bit: Good programming I think is to use the most concise and clear program, "the nearest path&qu ...

CSDN big bug, why can't my "no need" format be used? It's too uncomfortable. All typesetting "disorderly", "orderly" and "to do" cannot be used. The layout below may be a little ugly. If you feel inconvenient to watch, you can find a backup on github. ESP32 MCU learning notes - 01 - gpio&ledc&u ...