Yohan

@YohanHadji • 3,892 subscribers

La vie est belle @EPFL https://t.co/DEzz0WvLSe

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finally did it!! live video transmission between two esp32 with PCB antenna at 1000m distance! 640x480 and >20fps. we have a protocol above UDP packets. It allows sending large amount of data over small packets without having to use ACK and retransmits (not FEC).

finally did it!! live video transmission between two esp32 with PCB antenna at 1000m distance! 640x480 and >20fps. we have a protocol above UDP packets. It allows sending large amount of data over small packets without having to use ACK and retransmits (not FEC).

288,549 görüntüleme

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600'000 radiosondes ($100M) are lost in nature each year after being used for only 2h. The Meteoglider returns to home after each flight to be reused.. it has been tested by national weather services in Switzerland, France, Spain and Denmark. NOAA it's your turn!

600'000 radiosondes ($100M) are lost in nature each year after being used for only 2h. The Meteoglider returns to home after each flight to be reused.. it has been tested by national weather services in Switzerland, France, Spain and Denmark. NOAA it's your turn!

316,762 görüntüleme • 11 ay önce

Snowfalls from this week in Switzerland seen from 100'000ft. The meteoglider keeps returning radiosondes to launch site no matter the season.

Snowfalls from this week in Switzerland seen from 100'000ft. The meteoglider keeps returning radiosondes to launch site no matter the season.

218,949 görüntüleme • 7 ay önce

I made a 240g glider that returns to home from the stratosphere, it took me 5 years.

I made a 240g glider that returns to home from the stratosphere, it took me 5 years.

263,295 görüntüleme • 2 yıl önce

the white dot in the upper left corner at 1:30? that's two others Meteogliders about to fly back home too😊 Returning 2 x Vaisala RS41 and 1 x Meteomodem M20.

the white dot in the upper left corner at 1:30? that's two others Meteogliders about to fly back home too😊 Returning 2 x Vaisala RS41 and 1 x Meteomodem M20.

161,967 görüntüleme • 1 yıl önce

at Meteomatics we dare mighty things* *249g Meteoglider (including 4K camera) releasing at 30'000m before returning to weather balloon launch site with precious weather sensors. Making them reusable.

at Meteomatics we dare mighty things* *249g Meteoglider (including 4K camera) releasing at 30'000m before returning to weather balloon launch site with precious weather sensors. Making them reusable.

85,573 görüntüleme • 1 yıl önce

weekend project: get 3D position from trilateration between three LoRa ground stations! GNSS (green) vs LoRa ToF trilateration (red), as computed onboard.

weekend project: get 3D position from trilateration between three LoRa ground stations! GNSS (green) vs LoRa ToF trilateration (red), as computed onboard.

77,866 görüntüleme • 1 yıl önce

live image transmission between two esp32 with PCB antenna from ~400m distance..needs some improvement before reaching 1km!

live image transmission between two esp32 with PCB antenna from ~400m distance..needs some improvement before reaching 1km!

79,302 görüntüleme • 1 yıl önce

sunset in the stratosphere seen from a 250g weather sensor gliding back home from 30'000m altitude. The Meteoglider is making radiosondes reusable

sunset in the stratosphere seen from a 250g weather sensor gliding back home from 30'000m altitude. The Meteoglider is making radiosondes reusable

39,328 görüntüleme • 9 ay önce

the world is so fucking beautiful up there

the world is so fucking beautiful up there

74,713 görüntüleme • 1 yıl önce

Meteoglider landing back home after releasing from its weather balloon at 30km altitude and 80km distance.

Meteoglider landing back home after releasing from its weather balloon at 30km altitude and 80km distance.

13,224 görüntüleme • 10 ay önce

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