# Sensors and Hardware

**URL:** https://community.droneblocks.io/c/sensors-and-hardware/14.md

[Latest](https://community.droneblocks.io/latest.md) · [Categories](https://community.droneblocks.io/categories.md)

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## [GPS receiver for DEXI 5](https://community.droneblocks.io/t/gps-receiver-for-dexi-5/1470)

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**Author:** [@dhart3003](https://community.droneblocks.io/u/dhart3003)\
**Replies:** 1\
**Last updated:** [April 3, 2025, 1:49am UTC](https://community.droneblocks.io/t/gps-receiver-for-dexi-5/1470 "2025-04-03T01:49:26Z")

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What GPS receivers have been used on DEXI 5, and what mounting locations have been used? Thinking the Holybro M10 ($45) is good low cost std precision receiver. For $75 there is the Ark SAM GPS.

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## [Tello Propellers not on right](https://community.droneblocks.io/t/tello-propellers-not-on-right/946)

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**Author:** [@alyssac0630](https://community.droneblocks.io/u/alyssac0630)\
**Replies:** 1\
**Last updated:** [May 22, 2023, 3:17pm UTC](https://community.droneblocks.io/t/tello-propellers-not-on-right/946 "2023-05-22T15:17:22Z")

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Hello I have calibrated my Tello, but the propellers are not on right. I cannot seem to put them on correctly as my motors are not marked to tell me which propellers go where.

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## [Arduino Settings for RoboMaster TT ESP32 Board](https://community.droneblocks.io/t/arduino-settings-for-robomaster-tt-esp32-board/453)

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**Author:** [@dbaldwin](https://community.droneblocks.io/u/dbaldwin)\
**Replies:** 0\
**Last updated:** [July 5, 2022, 1:13pm UTC](https://community.droneblocks.io/t/arduino-settings-for-robomaster-tt-esp32-board/453 "2022-07-05T13:13:10Z")

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I’m posting this here for my own benefit and hopefully others. I switch between Arduino boards a fair amount and always seem to forget my settings for the ESP32 on the RoboMaster TT. You can see them below: