thermostat/README.md

Thermostat v2 prototype firmware

Building

Debian-based systems (tested on Ubuntu 19.10)

• install git, clone this repository
• install rustup

rustup toolchain install nightly
rustup update
rustup target add thumbv7em-none-eabihf --toolchain nightly
rustup default nightly
cargo build --release

The built ELF file will be at target/thumbv7em-none-eabihf/release/thermostat

Network

Setup

Ethernet, IP: 192.168.1.26/24

Use netcat to connect to port 23/tcp (telnet)

telnet clients send binary data after connect. Enter \n once to invalidate the first line of input.

Reading ADC input

Set report mode to on for a continuous stream of input data.

The scope of this setting is per TCP session.

Commands

Syntax	Function
report	Show current input
report mode	Show current report mode
report mode <off/on>	Set report mode
pwm	Show current PWM settings
pwm <0/1> max_i_pos <width>	Set PWM duty cycle for max_i_pos to width
pwm <0/1> max_i_neg <width>	Set PWM duty cycle for max_i_neg to width
pwm <0/1> max_v <width>	Set PWM duty cycle for max_v to width
pwm <0/1> <width>	Disengage PID, set i_set DAC to width
pwm <0/1> pid	Set PWM to be controlled by PID
pid	Show PID configuration
pid <0/1> target <value>	Set the PID controller target
pid <0/1> kp <value>	Set proportional gain
pid <0/1> ki <value>	Set integral gain
pid <0/1> kd <value>	Set differential gain
pid <0/1> output_min <value>	Set mininum output
pid <0/1> output_max <value>	Set maximum output
pid <0/1> integral_min <value>	Set integral lower bound
pid <0/1> integral_max <value>	Set integral upper bound
s-h	Show Steinhart-Hart equation parameters
s-h <0/1> <t/b/r0> <value>	Set Steinhart-Hart parameter for a channel
postfilter <0/1> rate <rate>	Set postfilter output data rate