We are pleased to announce that we have completed a number of major upgrades to the production design of IoThing Digital. These changes make it even easier to use and for an even greater range of possible applications. The most significant improvements are as follows:

• It is now much easier to control relays and digital inputs due to the use of the PCF8574 chip
• We have added non-erasable memory (EEPROM or FRAM) for configuration data and safety information
• The power of the DC-DC converter on the module can now be selected from 5 to 15 watts
• Instead of one connector for devices that use the I²C module, there are now two, and they correspond to the popular Qwiic connector format
• On the bottom side of the module, there are two FFC FPC mikroBUS connectors for attaching other modules (including our own IoThing Analog and IoThing Combo boards)
• To improve input characteristics, we changed the set of resistances for selecting the range of DI signals
• We added LED indicators for digital input signals.

This is what IoThing Digital looks like now!

We have also added support for two optional features that backers capable of modifying their hardware could add to this version of IoThing Digital:

• An optional 1-Wire interface
• We have added an (optional) temperature sensor