Frequently Asked Questions: Secure Cloud Connectivity and Voice Control Demo for Microchip WFI32-IoT Board
Devices: | PIC32 WFI32E | WFI32 | Trust&Go (ECC608) |
Features: | Secure Cloud connectivity | Voice Control |
- The board is not able to connect to the cloud from my office network
- Why am I not able to connect to an access point configured to use channel 13
- Why is temperature value reported by the board is higher than my actual room temperature?
- What is the flash and RAM usage in normal Vs MicroMIPS modes?
- How to enable compiler MicroMIPS modes?
The most common issue in this scenario is the firewall configurations of the office network. Cloud connection is done over the secure MQTT port 8883. Many office firewalls block this port. Please talk to the IT department of your office to allow port 8883 in your firewall.
For regulatory compliance, the OOB demo is configured to use RF channels that works worldwide. Since channel 13 is restricted in some countries, it is disabled. Refer to the device software user guide to get information about regulatory domain selection APIs.
The tempertaure reading reported by the board reflects board temperature and not room temperature. Board temperature is relatively high because of high current due to multiple components drawing relatively high current (i.e USB Hub and PKOB4).
When using XC32 compiler normal mode, following is data and program memeory usage:
When using XC32 compiler microMIPS mode (needs XC32 license to enable Os Optimization level), program memory savings of around 23% (241 KB) can be observed:
GCC and Linker settings in the Project Properties are highlighted below:
