Hi Everyone!
I've been working on this for the last 6 months so I thought I'd share it with other rocketeers as well to see what people think. I wanted a logging Altimeter that is very accurate and at the same time very lightweight, so I can use it in smaller rockets as well without the weight of the altimeter having too much of an influence on the rocket's flight. I read an article about how temperature can make a huge difference to the measured altitude so the device also logs temperature and altitude calculations derived from pressure will be temperature-compensated. Also included is a 3-Axis accelerometer and magnetometer on the board, which also allows the acceleration and flight direction of the rocket to be logged in detail. There's an integrated USB interface so there's no separate download kit needed, just plug it straight into a laptop with a microUSB cable. All this is squeezed into a board just 20x14mm weighing 2 grams with battery. Below is a picture of the first prototype.
I've done one test flight with it and it worked great. I'm working on an improved version now which I'll be prototyping next month. I'm calling the device 'AltiLogger'.
I've been working on this for the last 6 months so I thought I'd share it with other rocketeers as well to see what people think. I wanted a logging Altimeter that is very accurate and at the same time very lightweight, so I can use it in smaller rockets as well without the weight of the altimeter having too much of an influence on the rocket's flight. I read an article about how temperature can make a huge difference to the measured altitude so the device also logs temperature and altitude calculations derived from pressure will be temperature-compensated. Also included is a 3-Axis accelerometer and magnetometer on the board, which also allows the acceleration and flight direction of the rocket to be logged in detail. There's an integrated USB interface so there's no separate download kit needed, just plug it straight into a laptop with a microUSB cable. All this is squeezed into a board just 20x14mm weighing 2 grams with battery. Below is a picture of the first prototype.
I've done one test flight with it and it worked great. I'm working on an improved version now which I'll be prototyping next month. I'm calling the device 'AltiLogger'.