# Flashing data from DHT21. Error **URL:** \ **Category:** Uncategorized\ **Created:** [December 6, 2019, 11:59am UTC](https://forum.xod.io/t/flashing-data-from-dht21-error/3027 "2019-12-06T11:59:21Z")\ **Posts on this page:** 2\ **Page:** 1

**Author:** ![iandriyanov](https://avatars.discourse-cdn.com/v4/letter/i/6f9a4e/32.png) [@iandriyanov](https://forum.xod.io/u/iandriyanov)\ **Post date:** [December 6, 2019, 11:59am UTC](https://forum.xod.io/t/flashing-data-from-dht21-error/3027/1 "2019-12-06T11:59:21Z")

After upload or upload&debug from XOD, i see flashing on my 16x2 lcd, and on XOD serial output, every second of time: - (first) L1 - ERR, L2 - ERR - (second) L1 - Temp(num) L2 - Hum (percent) - … - n-… Again and again. And in my serial console like this: ```auto ↘ +XOD_ERR 1062 43 31 ↘ +XOD 1062 59 ERR ↘ +XOD 1062 63 ERR ↘ +XOD_ERR 1344 43 15 ↘ +XOD_ERR 1363 43 0 ↘ +XOD 1363 59 0.30 # <- HUM ↘ +XOD 1363 63 25.90 # <- Temp ↘ +XOD_ERR 1664 43 31 ↘ +XOD 1664 59 ERR ↘ +XOD 1664 63 ERR ↘ +XOD_ERR 1946 43 15 ↘ +XOD_ERR 1965 43 0 ↘ +XOD 1965 59 0.30 #<- HUM ↘ +XOD 1965 63 25.90 #<- Temp ↘ +XOD_ERR 2266 43 31 ↘ +XOD 2266 59 ERR ↘ +XOD 2266 63 ERR ↘ +XOD_ERR 2548 43 15 ↘ +XOD_ERR 2567 43 0 ↘ +XOD 2567 59 0.31 ↘ +XOD 2567 63 26.00 ↘ +XOD_ERR 2868 43 31 ↘ +XOD 2868 59 ERR ↘ +XOD 2868 63 ERR ↘ +XOD_ERR 3150 43 15 ↘ +XOD_ERR 3169 43 0 ↘ +XOD 3169 59 0.31 ↘ +XOD 3169 63 26.00 ↘ +XOD_ERR 3470 43 31 ↘ +XOD 3470 59 ERR ↘ +XOD 3470 63 ERR ↘ +XOD_ERR 3752 43 15 ↘ +XOD_ERR 3771 43 0 ↘ +XOD 3771 59 0.31 ↘ +XOD 3771 63 26.00 ↘ +XOD_ERR 4073 43 31 ↘ +XOD 4073 59 ERR ↘ +XOD 4073 63 ERR ↘ +XOD_ERR 4355 43 15 ↘ +XOD_ERR 4374 43 0 ↘ +XOD 4374 59 0.31 ↘ +XOD 4374 63 26.00 ``` ---

**Author:** ![geoshot](https://avatars.discourse-cdn.com/v4/letter/g/cc9497/32.png) [@geoshot](https://forum.xod.io/u/geoshot)\ **Post date:** [December 25, 2019, 3:01pm UTC](https://forum.xod.io/t/flashing-data-from-dht21-error/3027/2 "2019-12-25T15:01:50Z")

try on input UDP set the link with nod CLOCK, and in CLOCK (IVAL =2), I so made I have broke a