About Ciprian

Yes Olboss, for the IAQ you'd have to go into the library and change the sensor scaling, however it won't be as accurate as you cannot have a linear scaling function like with the formulas that I presented, only a number like 0.8 or 0.1 etc. Here are my 8 readings against other sensors, please keep in mind that the Smart Air Monitor is a $120 device with reviews claiming within 99% accuracy.  Also mind the fact that the IAQ is calculated differently on the Air Monitor by using the Particulate Matter and Carbon Monoxide, with different weights. The Nicla calculates it with temp, hum, voc, estimated co2(not actual). Furthermore, the Air Montior rounds up temperature within the next .5, and the both the humidity and VOC are rounded to the next integer. Every single row in the table below has had its data measured after 3 minutes of letting the sensor calibrate to the environment + averaging the last 4 outputs. The Air Monitor was left for 20 minutes to calibrate.  ... View more

Hey Olboss, I don't know if you need it anymore, but I have done some testing and comparison against other sensor + linear regression to get the best values. The graphs look like the following, I have only been able to get 8 data points, with more, the error could be less. Use the function for correct temperature within 0.5Celsius error: correct_temp = 1.0095 * nicla_temp - 4.8051 Use the function for 1% error between 0-30% humidity range, and 2% error (approximated) with 30%> humidity: correct_hum = 1.4383 * nicla_hum -2.5628 Use the following formula for correct barometric readings: correct_pressure = 0.718/100 * nicla_pressure + nicla_pressure These are all perfomed by myself and will not offer 100% accuracy as specified, but the error should be less 0.5% for temp and pressure, with 1-2% for the humidity depending on the range. temperature regression humidity regression ... View more

This is fantastic news, it would be really good to have a timeline for this, as the device was bought for accurate readings and currently it has issues.  I will be following this thread to check for updates, specifically in the following 2 weeks. ... View more

Yes Robin, I am talking about the "software simulation to achieve serial port by using GPIO". In regard to "haven't have the software code to do it." Are there any plans to add that capability? ... View more