anseljh / avr-rangefinder-peripheral

Ultrasonic rangefinder to I2C peripheral adaptor

avr-rangefinder-peripheral

Convert a HC-SR04 or compatible ultrasonic rangefinder into an easy-to-use I2C perhipheral using an ATtiny4313 microcontroller for the I2C target¹ device.

Also provides a serial connection via 3.5mm audio jack for debugging, via the ATtiny4313's USART.

To Do

• Get LED blinking
• Get USART working for serial console debug output
• Get rangefinder sending pulse
• Receive echo
• Compute distance
• Output distance to serial console
• Get I2C working in target mode

Footnotes

1. Language note on "controller" and "target": https://community.nxp.com/t5/Other-NXP-Products/Alternative-inclusive-terms-for-master-and-slave-in-I2S-I2C/td-p/1244999 ↩