SFA-40A firmware development: added update policy control, formaldehyde threshold alarms and Bluetooth network configuration.now is 26.04.18-A

We’ve continued to tweak the firmware for the SFA40 sensor in our spare time, adding some flexible features that we hope will make it even more useful :)

• Added a formaldehyde reading update strategy (no longer once per second; updates can now be triggered by the change in formaldehyde levels or based on a minimum time interval)
• Network configuration is now possible in Bluetooth mode (without using Wi-Fi)
• Added a formaldehyde alarm (default threshold: 0.002178 mg/m³)

We are testing it as thoroughly as possible to ensure its stability. We hope to share it with you as soon as possible.