Arduino AT24C08 EEPROM Driver
Unlike some other I2C EEPROM IC drivers, AT24C08 / AT24C08A need their 2 MSB address bits sent in the first device address byte. This assumes the A2 pin is connected to ground:
Category Archives: Arduino
Arduino RAM Usage Analysis
Some handy commands to analyze how much and where the RAM has gone on Atmega/Arduino: First, enable compiler verbose messages in the Arduino IDE, as you need need to see where the built binaries are stored (on my system, /tmp/build*** directory is used)
DIY Programmable Isolated AC Power Supply
This is my latest contraption. I made an AC power supply that can be controlled by the Yats test automatization software or any other tool that can send commands via a serial port. It provides 4 mains sockets that are controlled either through RS232 or manually using buttons. There is one isolated 220V and one… Read More »
Arduino compiler nonsense
I have spent a few hours investigating where all the RAM has gone in my new Arduino project. I need to investigate newer versions (still running 1.0), I really hope there are improvements. My favorite WTFs: string constants are stored in RAM string constants can be stored in Flash. For that you need to wrap… Read More »
Arduino Ethernet relay
This is just a quick adaptation of the Arduino Ethernet example to control a couple of relays for an automated test setup. I hope the source code is self-explanatory. Beware that Arduino IDE 1.0.1 or later should be used – DHCP in the Ethernet library is buggy in version 1.0. I am using Arduino ADK,… Read More »