ATtiny85 I2C driver for DYP-ME007 ultrasonic sensor
https://github.com/barneyman/at85-DYP.git
git clone https://github.com/barneyman/at85-DYP.git
git clone git@github.com:barneyman/at85-DYP.git
gh repo clone barneyman/at85-DYP
The tiny does all the tedious work with the ultrasonic, and gives you a nice i2c to talk to