# Got Adafruit Feather 32u4 LoRa Radio to work and here is how

**URL:** <https://www.thethingsnetwork.org/forum/t/got-adafruit-feather-32u4-lora-radio-to-work-and-here-is-how/6863>\
**Category:** End Devices (Nodes)\
**Created:** [April 23, 2017, 11:01am UTC](https://www.thethingsnetwork.org/forum/t/got-adafruit-feather-32u4-lora-radio-to-work-and-here-is-how/6863 "2017-04-23T11:01:48Z")\
**Posts on this page:** 1\
**Showing post:** 68

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**Author:** ![arjanvanb](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/arjanvanb/32/46626_2.png) [@arjanvanb](https://www.thethingsnetwork.org/forum/u/arjanvanb)\
**Post date:** [April 1, 2018, 10:47pm UTC](https://www.thethingsnetwork.org/forum/t/got-adafruit-feather-32u4-lora-radio-to-work-and-here-is-how/6863/68 "2018-04-01T22:47:00Z")

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Sorry, no solution for your problems, but:

- Your first screenshot shows one `EV_JOIN_FAILED` in the device’s log, which is not accounted for in the screenshot of TTN Console. Did you see earlier join attempts before 14:41:25 then? If so, then I guess the `EV_JOINED` refers to the (re)try of 14:41:25, which sends the Join Request at 904.6 SF8 and then apparently successfully gets the Join Accept on 923.9 SF7. So, apparently that’s okay for the US frequency plan. (If you did not see an earlier Join Request, then maybe no gateway received it; I guess the successful one then still refers to what the screenshots show.)

- The third screenshot shows downlinks in TTN Console, so I guess the uplinks are confirmed uplinks? (You [should not](https://www.thethingsnetwork.org/forum/t/limitations-data-rate-packet-size-30-seconds-uplink-and-10-messages-downlink-per-day-fair-access-policy/1300) send every uplink as a confirmed uplink.) Then the next uplink is not listed as a retry (I’m sure the frame counters will have increased as well.) So apparently the downlink for the ACK is received as well.

- The third screenshot also shows that **for a 904.6 SF8 uplink, the 15:15:28 downlink is using 923.3 SF12, but the 15:25:30 downlink uses 923.9 SF7?** Maybe one is in RX1 and the other in RX2. But if not, then how would a node know at which frequency to listen?

And though downlinks work (for otherwise it would never join), maybe it does not always work? [See LMIC\_setClockError](https://www.thethingsnetwork.org/forum/search?q=LMIC_setClockError). But regardless downlinks: once the join succeeded (which needs downlinks too), uplinks should show of course, even without downlinks…

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