Shenzhen Jinhanyu Electronics Co., Ltd CT8229 8/16 Key Capacitive Touch Detection Chip Overview Description The CT8229 touch detection IC is a touch chip designed using capacitive sensing principles. This chip features a built-in voltage regulator for the touch sensor, providing stable touch performance applicable in various scenarios. The human touch panel can be connected through … Read more
1. I2C Devices 1.1 I2C Controller Description of the I2C bus controller node: i2c0: i2c@10002000 { compatible = "arm,versatile-i2c"; reg = <0x10002000 0x1000>; interrupts = <0 30 4>; #address-cells = <1>; #size-cells = <0>; clocks = <&osc24M>; clock-frequency = <100000>; /* 100KHz standard mode */ status = "okay"; }; Key Attribute Descriptions: <span>#address-cells = <1></span>: … Read more
STM32 Driver for 24C256 EEPROM Read/Write Implementation The 24C256 is a 256Kbit (32KB) I2C interface EEPROM. The following implementation is based on the STM32 HAL library, which includes initialization, single-byte read/write, page write, and multi-byte read functionalities. 1. Hardware Connection STM32 Pin 24C256 Pin Description SCL SCL I2C Clock Line SDA SDA I2C Data Line … Read more
Background Knowledge The DS1307 is an I2C interface real-time clock (RTC) chip, primarily used for independent timing (data retention during power loss), providing accurate year/month/day/hour/minute/second information for devices like Arduino and microcontrollers. It is one of the most commonly used timing modules in hardware DIY projects. 【Core Features】 Independent Timing: Built-in 32.768kHz crystal oscillator with … Read more
In daily bidding projects, it is common to encounter inconsistencies between the technical specifications required by the bidding party and the technical support materials provided by the bidders. At such times, caution is necessary; if the unit issues are not clearly explained, it could lead to disqualification of the bid. What should be done in … Read more
Click 👇 to follow, set the “…” key in the upper right menu as a star to avoid missing the latest tweetsIt is believed that almost all electronic practitioners will encounter the I2C communication protocol. I2C (Inter-Integrated Circuit) bus is a two-wire synchronous serial communication protocol developed by Philips Semiconductors (now NXP) in the 1980s, … Read more
▼ Follow for more valuable insights “ On the journey of designing the I2C controller, we have successfully established the clock skeleton (SCL) and the command center (state machine). However, to truly make the data “move” and accurately control the transmission of each bit and byte, we need two key “counters”. This article will delve … Read more
The Game Boy emulator running on the ESP8266 is part of a project from ESPboy. https://github.com/ESPboy-edu/ESPboy_GameBoy ESPboy uses the ESP8266 as the processor and employs an I2C chip to expand GPIO for controlling the Game Boy, as the usable IO on the ESP8266 is quite limited. It uses an ST7735 LCD with a resolution of … Read more
Microcontroller development engineers and electronics enthusiasts deal with various digital circuits daily. In addition to using tools like multimeters and oscilloscopes for circuit debugging, logic analyzers are also essential. A logic analyzer is an instrument that collects and displays digital signals from a test device using a clock, primarily for timing analysis.Unlike oscilloscopes, logic analyzers … Read more
▼ Follow for more valuable content “ In FPGA development, how to design a highly compatible and reliable I2C master controller? Jack believes the key lies in the generation and control of the SCL clock. This article will delve into the design ideas for the I2C bus SCL clock, from frequency division methods, sampling timing … Read more