Beginner final project: habitat module

Three months of beginner level end with a chip that looks after a whole habitat module. It heats, switches the light, warns about wrong pressure and stays safe when the sensor fails. You already know everything you need for it.

The setup#

Milestones#

1. Heater: on below 20 °C, off from 22 °C, keep the state in between.
2. Light: the habitat lights follow the lever. If the lever is missing, the light stays on.
3. Pressure warning and display: below 90 kPa or above 110 kPa “Druckalarm” lights up. The display shows the temperature in °C.
4. Sensor failure: heater off, pressure alarm on, display −999.

Dominik's style#

Build the chip so that you still understand it in three months:

• a header comment at the very top, then the settings block with a define for every hash and every limit, with a comment
• an alias for every register
• sections with # --- 1. … ---
• devices only via lbn and sbn with HASH("Name"), batch mode Average
• bring everything into a safe state before the start label, one yield in the main loop

# --- 3. Light by lever, on without lever ---
lbn light LEVER HASH("Licht") Open Average
snan tmp light
select light tmp 1 light
sbn LAMP HASH("Wohnlicht") On light