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Unexpected issue with Ultra Eco Mode on the HSL board #270

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opened 2026-10-05 05:56:04 +02:00 by adam · 2 comments
adam commented 2026-10-05 05:56:04 +02:00
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I tested the latest version of Igate FW 3.2.3 on the "Wireless Stick Lite with Display" (V3), and Igate was sending corrupted data from the BME280 in Ultra ECO mode. I also tried FW V3.2.2, and the behavior was the same. It wasn’t until I tried the latest version from 2025 (V3.1.7) that the data was correct. Everything works fine in normal mode.
What’s strange is that the latest version works fine for me with both Heltec V3.2 and LoRa32 V2.1/1.6.1. I can’t find any hardware issue...

I tested the latest version of Igate FW 3.2.3 on the "Wireless Stick Lite with Display" (V3), and Igate was sending corrupted data from the BME280 in Ultra ECO mode. I also tried FW V3.2.2, and the behavior was the same. It wasn’t until I tried the latest version from 2025 (V3.1.7) that the data was correct. Everything works fine in normal mode. What’s strange is that the latest version works fine for me with both Heltec V3.2 and LoRa32 V2.1/1.6.1. I can’t find any hardware issue... <!-- github-sync-id:4284861492 -->
adam commented 2026-10-05 05:56:05 +02:00
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I need confirmation where did you power the BME280 for this, from VEXT or from 3.3V

I need confirmation where did you power the BME280 for this, from VEXT or from 3.3V <!-- github-comment-id:5962058952 -->
adam commented 2026-10-27 16:41:41 +01:00
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Always and in all versions directly from the 3.3V pin. VEXT is intended for this, but it does not work correctly. The BME280 consumption is minimal, so it is not a problem.
I have not tried the latest version now, but what I wrote before still applies.

Always and in all versions directly **from the 3.3V** pin. VEXT is intended for this, but it does not work correctly. The BME280 consumption is minimal, so it is not a problem. I have not tried the latest version now, but what I wrote before still applies. <!-- github-comment-id:5989859952 -->
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Reference: adam/LoRa_APRS_iGate#270