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Voltage

The PCB accepts a wide voltage of 7.5-36V for operation.

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Modbus - RS-485

Modbus is a messaging protocol buildt on top of RS-485 that defines the packet structure for transferring data between devices in a master/slave architecture.

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Low Cost

The Modbus PCB is focused on low cost in order to connect your modbus to a chosen technology.


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4 Pin Plug in Screw

Use the 4 Pin Plug in Screw takes 7.5 V to 36 V input and A+ and B- from a Modbus RS485 serial link.

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Developer friendly

Develop your code in a friendly highlevel development environment of your choice.

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Global Connectivity

Use cellular (LTE-M / NB-IoT), LoRaWAN®, Sigfox and Bluetooth® networking technologies supported by your PyCom chip of choice.



What is it?

This PCB takes 7.5 V to 36 V input and A+ and B- from a Modbus RS485 serial link and pass it on to the SiPy, LoPy4, Gpy and FiPy chips from pycom.io. This allows you to communicate to and from MODBUS RS485 to NB-IoT, Sigfox, WIFI, LoRaWan or Bluetooth as supported by the pycom.io chip you decide to plug into the thing.

Tingkart will provide a sample code for up and downlink messages via Modbus RS485 to LoRaWan in Micropython, if you have other requirements look at the pycom docs for details.

Modbus is a messaging protocol that defines the packet structure for transferring data between devices in a master/slave architecture. The protocol is independent of the transmission medium and is usually transmitted over TCP (MODBUS TCP) or serial communication (MODBUS RTU). Have a look at for details micropython modbus

What makes it special?

There is really no reason this PCB is special, it takes 7.5 V to 36 V input and A+ and B- from a Modbus RS485 serial link and allows you process on the excellent SiPy, LoPy4, Gpy or FiPy chips from pycom.io. You can communicate to and from MODBUS RS485 to NB-IoT, Sigfox, WIFI, LoRaWan or Bluetooth as supported by the pycom.io chip you decide to plug into the thing.

You get the PCB with 7.5-36V to 5v power supply, 4 Pin Plug in Screw Dupont Cable Terminal Block Connector Right Angle to connect VIN, GND, A+ and B-, Headers for the pycom chip and RS485 Module Hardware Automatic Flow Control Module Serial UART module.

You need to get your own PyCom chip of choice.

Cloud Service

Tingkart offers a service that allows you to configure your devices read and write registers and defining your endpoint all over the internet.

  • Upload configuration to Modbus bridge
  • Connect Modbus to CAT-M1, SigFox, LoRaWan
  • Set upload rate
  • Set modbus rad/write registers
  • Select HTTPS or MQTT endpoint to post values

Contact Us

Stardalen 730
7643
Skei i Jølster
Norway
info@tingkart.com

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