DS3231-based alarm clock
I present concepts for a DS3231-based alarm clock. The alarm clock is controlled with only two buttons and a slide switch. I use the Nokia 5110 and the DOGS164 as energy-saving displays.
Read MoreTag: I2C
TinyWireM vs. Wire for ATtinys
To save valuable flash memory on ATtinys when using I2C, you can use alternatives to Wire.h such as TinyWireM. I show how it works.
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EEPROM Part 2 – external I2C EEPROMs
I show how you can use I2C controlled EEPROM ICs with your microcontroller. This works very comfortably with a library, but it can also be done without it.
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Logic Analyzer
The Logic Analyzer is a low-cost tool that allows you to analyze signals such as I2C, SPI, PWM and much more. I introduce the Analyzer and the Logic 2 software.
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Programming the ESP32 with MicroPython
In this post, I show you how to program the ESP32 with MicroPython. I go into detail about the A/D converters, I2C, timers, RTC, touch pins, etc.
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ICM-20948 9-Axis Sensor Part I
I present the ICM-20948 9-axis sensor and my associated library. The ICM-20948 is the successor to the MPU-9250. This is Part 1.
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Programming the ESP32 with Arduino Code
I introduce the ESP32 and its main features. In particular, I will discuss the differences to the Arduino (AVR) boards.
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How to use the I2C interfaces of the ESP32
I will show you how to use the two I2C interfaces of the ESP32 and which requirements libraries of I2C components must have for this.
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TCA9548A – I2C Multiplexer
I show you how to use up to eight I2C components with the same address with the I2C multiplexer TCA9548A. Alternatively, you can use MOSFETs as well for this purpose.
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ADXL345 – The Universal Accelerometer – Part 1
The ADXL345 is a 3-axis accelerometer with many features. I explain how to use it with my associated library.
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