RH/Temp sensor

XY · XY-MD02 · XY-MD02

Manufacturer: XY
Product: XY-MD02
Model: XY-MD02
Protocol: Modbus
Package: Sensors (SU2202)
Updated: 2025-07-22
Driver ID: 325

Notes

Low cost RH/Temp room sensor

Connect:
ezeio D0 -> B-
ezeio D1 -> A+
ezeio 0V -> -
ezeio +V -> +

Default 9600bps, address 1

To change address, write to holding register 257 (0x0101).
To change speed, write to holding register 258 (0x0102)
0=9600, 2=19200

Registers 5

#	Name	Unit
1	Relative Humidity	`%RH`
2	Temperature	`°C`
3	Dew point	`°C`
4	Temperature	`°F`
5	Dew point	`°F`

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