Files
irrigation_system/software/apps/slave_node/dts/bindings/vnd7050aj-valve-controller.yaml
Eduard Iten a77298b3a6 Implement VND7050AJ supply voltage reading function
- Added devicetree overlay for VND7050AJ with GPIO and ADC configuration
- Created custom devicetree binding for VND7050AJ valve controller
- Implemented valve_get_supply_voltage() function with proper pin control:
  - RST=HIGH to enable VND7050AJ
  - S0=1, S1=1 for supply voltage sensing mode
  - SEN=1 to enable MULTISENSE output
  - ADC reading on PA0 (ADC1_IN1) with 12-bit resolution
- Fixed supply voltage calculation (VCC/8 per datasheet)
- Added comprehensive debug logging for all steps
- Tested and verified ADC functionality
- Current reading: 5.1V (may be limited by hardware power supply)

Files modified:
- software/lib/valve/valve.c: Main implementation
- software/apps/slave_node/boards/weact_stm32g431_core.overlay: DT config
- software/apps/slave_node/dts/bindings/vnd7050aj-valve-controller.yaml: DT binding
- software/apps/slave_node/src/main.c: Test code
- software/apps/slave_node/prj.conf: ADC driver enablement
2025-07-04 08:54:47 +02:00

36 lines
737 B
YAML

# VND7050AJ Valve Controller binding
description: VND7050AJ valve controller GPIO configuration
compatible: "vnd7050aj-valve-controller"
properties:
in0-gpios:
type: phandle-array
description: GPIO for IN0 control signal
required: true
in1-gpios:
type: phandle-array
description: GPIO for IN1 control signal
required: true
rst-gpios:
type: phandle-array
description: GPIO for reset pin
required: true
sen-gpios:
type: phandle-array
description: GPIO for sense enable pin
required: true
s0-gpios:
type: phandle-array
description: GPIO for select 0 pin
required: true
s1-gpios:
type: phandle-array
description: GPIO for select 1 pin
required: true