FlySky FS-CAT01 Altitude Sensor I.bus Data Port Compatible FS-i8 FS-i10 Transmitter
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This "altimeter" works perfect for my needs (flying thermals)! Anyway I think it is important to know that this device does not send altitude to the Tx but atmospheric pressure and temperature instead. You need a Tx that calculates the altitude based on these two parameters. So I updated my FlySkyI6 firmware using this release https://github.com/qba667/FlySkyI6/releases/tag/1.7.6 Now my transmitter calculates and shows altitude on the screen and gives a basic sound feedback to let you know if the plain is gaining or loosing altitude. This firmware upgrade gives you many other cool features, like timer alarm, 14 channels instead of the original 6, etc
This is a must-have item no.1 if you fly gliders and use FlySky Tx and Rx. Works without problems I just plugged it into the Rx FS-i6B iBus connector then found and turned on the sensor in the Tx settings. Now shows the height of the glider on the Tx screen. Remember to calibrate the pressure in the Tx settings to show your real height because there is only a pressure sensor and nothing more. Now I need to upgrade the Tx firmware to FlyPlus so that that sensor will works like a full-fledged variometer with an audible signal as it does when flying with a glider.