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WildernessLabs / Meadow_Issues

Public repo for bugs and issues with Meadow
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DACs #281

Open E-R-T-W opened 1 year ago

E-R-T-W commented 1 year ago

Is your feature request related to a problem? Please describe. I saw the Meadow F7v2 has 2 DACs. After purchasing Meadows and starting a project to control a 7 zone slab heating system for a very large industrial sawmill building in Northern Canada, I discovered that the DACs are not implemented, nor do I see them on the roadmap. Sure I can connect external DACs, but why? They are built into the Meadow. (I'm used to having them available on PIC microControllers).

Describe the solution you'd like Please implement the DACs!

Describe alternatives you've considered Abandon Meadow and stick to PIC microControllers.

Additional context Love being able to program a microController in C# and .NET, but need all the functionality of a microController including the basics like DACs.

Peter-Moody commented 11 months ago

An initial evaluation shows that the analog output for the 2 DACs is fixed as PA4 and PA5 and both of these pins are exposed on FeatherV1, FeatherV2 and CCM. The Nuttx configuration also has a number of configuration options related the stm32f7 DAC. The first being CONFIG_STM32F7_DAC. Nuttx also has a test app in apps/examples/dac/