Open-Boiler v0.8

Notes:

• Fourth working test.
• Heat level selection by reading the DHW and CH potentiometers, depending on the current cycle duty.
• Heat level modulation with an algorithm that opens each valve during a cycle time percentage. The cycle times, for DHW and CH, can be changed in the settings file before compiling.
• Operation mode selection by reading the system potentiometer position.
• More precise FSM timing and non-blocking delays implemented by hardware with Timer0.
• Serial console dashboard language localization implemented.
• Main FSM logic improved and several bug fixes in the igniting algorithm and sensors failure detection code implemented.
• Code reorganized, split into several libraries.
• Serial console coloring through a MobaXterm syntax color highlighting file.

Open-Boiler v0.7

Notes:

• Third working test.
• Bug fixes and improved main FSM.
• Basic DHW thermal regulation: 1/3 12.000 Kcal/h + 2/3 7.000 Kcal/h across a 10 seconds time spot.
• All sensors activated: time and code tuning to activate the airflow sensor.

Open-Boiler v0.6

Notes:

• Second working test.
• Basic DHW thermal regulation: 1/3 12.000 Kcal/h + 2/3 7.000 Kcal/h across a 10 seconds time spot.
• All sensors activated: time and code tuning to activate the airflow sensor.

Open-Boiler v0.5

Notes:

• First working test.
• No thermal modulation in this version.
• Temperature set with gas valve 2 (12.000 Kcal / h).
• The temperature is enough for comfortable DHW and central heating with the coldest local winter temperatures (1 to 10 °C).