We recommend using GSM, WiFi, or ethernet connector devices / sensors hubs with any sensors since they're much more reliable than Androids for Industrial IoT applicationslike:
You can use Valarm Industrial IoT, telemetry and remote sensor monitoring solutions with any of the following connector devices:
Valarm Industrial IoT sensor data is GPS-tagged, time-stamped, and sent to Valarm Tools Cloud / tools.valarm.net via any internet connectivity like WiFi, ethernet, or cell network. With Valarm Tools Cloud you’ll find services for mapping, graphing, and APIs like JSON to help you with your real-time, geo-enabled sensor monitoring and Industrial IoT applications.
Valarm compatible sensors and Industrial IoT hardware are available at shop.valarm.net.
Learn how all of this works together on our Web Dashboards for Remote Monitoring, Telemetry, Sensors & Industrial IoT.
How do you charge a phone or tablet while running the Valarm Pro app with external USB sensors? This instructable from Team Valarm shows you how!
Why did we solve this problem? Valarm provides sensor and monitoring solutions that facilitate rapid deployment of real-time, ad-hoc, mobile sensor networks for remote environmental monitoring, mobile data acquisition, and asset / vehicle tracking. Valarm connects industry-standard sensors, makes them location-aware, and streams their data to the cloud or to private networks, using readily available commodity hardware. To do all of this our customers in over 30 countries around the world use these USB OTG + Charge Y cables to monitor anything, anywhere!
Some tablets (especially 10″ models) are equipped with a dedicated power jack. But most tablets (and all phones) charge via the same USB port that will be hosting your external sensors. A simple OTG+Power “Y-cable” is the solution. Below is a video demonstrating the Charging + OTG Y-cable being used to plug a phone into a USB sensor at the same time it is charging.
Where do you get one of these fancy Y-cables? The specification varies between manufacturers, but if you have a Samsung or Sony device, you are in luck!
Micro USB OTG Y-cables for the Samsung devices (e.g., Galaxy S3 and S4) are available in the Valarm store.
Want to build your own? You can make your own cable for a Sony device (e.g., Xperia U ST25) by following the instructions below or else you can buy a factory-made cable from us.
Micro USB OTG Y-cables for the Sony devices (e.g., Xperia U, SP, Z) are available in the Valarm store.
To build your own you’ll need a few tools and supplies:
- USB cables with Micro USB and full size USB ends
- Soldering iron and solder
- Wire cutters
- Wire strippers
- Dremel or something else to cut and expose a USB cable’s circuit board
- Resistor (To make a Sony compatible USB OTG+Charging Y cable use a 100K Ohm resistor. To make a Samsung compatible USB OTG+Charge Y cable use a 64.9K Ohm resistor (available here)
Step 1: Remove Cover From USB Male Plug
Step 2: Solder 100K Resistor
Step 3: Strip USB Wires
Step 4: Hot Glue and Heat Shrink
Step 5: Plug in Your USB Sensors (CO2, Thermocouple, IAQ, VOCs, Humidity)
Step 6: Factory Made Cables Available
1) You don’t feel comfortable doing any of the steps above (we’ve done it a few times and admit it can be a bit tricky and time consuming)
2) You would not like to take the time (you do get better at it after you’ve done a few but it still takes us almost an hour to do one by hand)
3) Don’t have the equipment to build one…
You can buy one of Valarm’s USB OTG charge cables in the Valarm store. Thank you for your support!
Step 7: USB OTG + Charging Y Cables for Sony Xperia
This picture shows Valarm Pro running on a Sony Xperia U ST25i with an air quality (volatile organic compounds, VOC) sensor and charging at the same time.