AR Command — Voltage and Temperature Thresholds

Configuration of trigger “windows” for analog inputs, system voltages, and temperature sensors.

What is it for?

Use case	Description
🔋 Battery monitoring	Alert when voltage leaves safe range
🌡️ Temperature control	Detect over-temperature or freezing
⚡ Analog inputs	Monitor external voltages on digital inputs
🚨 Automation	Generate `AR+` and `AR-` events for rules

Description

Rinho manages analog voltages on its digital inputs, allowing reading of external voltages and configuration of trigger thresholds or voltage range “windows”.

Can be used:

The device’s analog inputs (AD0-AD5)
The main power supply and backup battery as auxiliary inputs
Temperature values obtained via OneWire input

Generates AR+ when the value enters the configured range and AR- when it exits the range (both above and below).

Syntax

Query


QARaa

Response


RARaabbcddddeffffggg

Configure


SARaabbcddddeffffggg

Parameters

Field	Description	Values
aa	Threshold index	`00` to `07`
bb	Input index to sense	See inputs table
c	Lower threshold sign	`+` or `-` (temperatures), `+` (voltages)
dddd	Minimum value	`+0000` to `+3000` cV or `-5500` to `+8500` °C
e	Upper threshold sign	`+` or `-` (temperatures), `+` (voltages)
ffff	Maximum value	`+0000` to `+3000` cV or `-5500` to `+8500` °C
ggg	Debounce (optional)	Tenths of second (IoT v1.04.03+)

Input Indices

Index	Input	Description
`00`-`05`	AD0-AD5	Digital/analog input
`06`	V	Main power supply
`07`	VBU	Backup battery
`08`	OW0/DT0	OneWire input 0
`09`	OW1/DT1	OneWire input 1
`10`	TEMP	Internal microcontroller temperature
`11`-`16`	DT2-DT7	Additional temperature sensors (IoT only)

The maximum allowable voltage on the measurement scale is 30.00 Vdc.

Examples

Main battery monitoring


>SAR0206+1050+1380<

Configures threshold 02 to sense the main battery (06) between 10.50V and 13.80V.

Behavior:

AR02+ → Voltage enters range 10.50V-13.80V
AR02- → Voltage exits range (< 10.50V or > 13.80V)

OneWire temperature control


>SAR0408+3000+3500<

Configures threshold 04 to sense the OneWire input (08) between 30°C and 35°C.

Behavior:

AR04+ → Temperature enters zone 30°C-35°C
AR04- → Temperature exits range (< 30°C or > 35°C)

Associated Signals

Property	Value
Signal	AR
Index	00-07
Suitable for conditional use	Yes
Edges	`+` (enters range), `-` (exits range)

Command	Description
AD	Analog voltage reading
AE	Extended analog input reading
DT	OneWire temperature reading
SS	Trigger configuration

Compatibility

💾Firmware v1.03.00

SPLegacy

ULLegacy

8 thresholds

💾Firmware v1.00.00

SP-IOT

SM-IOT

ZE-IOT

8 thresholds, debounce v1.04.03+, DT2-DT7