A DS18B20 on IO1 and 5V sends the panel temperature to the Shelly app and alerts on overheating.
DS18B20 sensor on IO1 to track equipment heating.
What it is, who it's for, what it does
About this product
The Micro USB to 5 Terminal Add-on cable turns the add-on port of The Pill by Shelly into an easy-to-wire block of five screw terminals. The micro-USB plug goes into The Pill, while the other end gives you 5V, GND, IO1, IO2 and IO3 terminals for connecting sensors and wired components.<br><br>The IO1 terminal is multi-purpose: it accepts DS18B20 temperature sensors, DHT22 temperature and humidity sensors, a 0-2.5 V analog input, or digital input/output. Terminals IO2 and IO3 work as digital inputs or outputs at 3.3 V logic level, ideal for contacts, buttons or LED status signals.<br><br>The cable is 24 cm long, the body measures 44x23x10 mm, weighs 23 g and is black. Being a passive accessory, it has no electronics of its own and needs no separate setup in the Shelly app.
- DeliveryFree from 1500 MDL
- Returns30 days to return
- Warranty24 months
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Where it works
Use cases
A DHT22 on IO1 reports cellar humidity and The Pill turns on a dehumidifier via a Shelly scene.
DHT22 sensor on IO1 for climate control in storage rooms.
A reed switch on IO2 and GND signals a door opening and triggers a notification in Home Assistant.
Digital input IO2 to detect open/closed state.
For the installerTechnical specificationsfull spec · wiring · datasheet
For the installer
Technical specifications
full spec · wiring · datasheet
Connectivity
- Connector
- Micro-USB to 5 screw terminals
- Terminals
- 5V, GND, IO1, IO2, IO3
- IO1 modes
- DS18B20, DHT22, analog 0-2.5V, digital I/O
- IO2/IO3
- Digital I/O 3.3 V logic
Power
- Power output
- 5 V
- Analog input range
- 0-2.5 V
Physical
- Cable length
- 24 cm
- Dimensions
- 44 x 23 x 10 mm
- Weight
- 23 g
- Color
- Black
Environment
- Operating temperature
- 0 to 40 °C
- Storage temperature
- -20 to 40 °C
- Humidity
- 30-70 % RH
- Max altitude
- 2000 m
Support
Frequently asked questions
Which device is this add-on for?
It is made for The Pill by Shelly: it connects to its micro-USB add-on port and breaks the lines out onto 5 screw terminals.Which sensors can I connect to the IO1 terminal?
IO1 accepts DS18B20 temperature sensors, DHT22 temperature and humidity sensors, a 0-2.5 V analog input, or a digital input/output.How do the IO2 and IO3 terminals work?
IO2 and IO3 are digital inputs or outputs at 3.3 V logic level, suitable for contacts, buttons or LED signals.Does it need separate setup in the app?
No, it is a passive accessory with no electronics of its own; the IO lines are configured in The Pill settings within the Shelly app.How long is the cable and what are the body dimensions?
The cable is 24 cm long; the body measures 44x23x10 mm, weighs 23 g and is black.Can I measure voltages above 2.5 V?
The IO1 analog input goes up to 2.5 V; for higher values use a voltage divider or the dedicated Analog Add-on.
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Manager guidance
Questions about this product?
A CasaSmart manager calls you within 1–2 working hours and answers anything — compatibility, install, alternatives.
+373 60 944 922Updated: · reviewed by CasaSmart Expert Team