Show threadPaco VelobsMay 8
@grochat J'ai continué à regardé et c'est effectivement le #HeltecV4 qui me tente le plus pour commencer à vous rejoindre. On est bien d'accord que c'est livré avec l'antenne, prêt a flasher avec le firmware de mon choix et basta n'est-ce pas ?
J'ai pas envie de coder des trucs dès le début.
@wissimboufe
framboise314Apr 27

Réception du jour : Heltec WiFi LoRa 32 V4 ! 📡

On oublie la V3, place aux 28 dBm de puissance, à l'ESP32-S3R2 et au support solaire natif. Idéal pour booster les nœuds #Meshtastic.

Prochainement sur le banc d'essai avec les Elecrow M5 & M6. On en parle bientôt! 📏

#IoT #LoRa #ESP32 #Framboise314 #HeltecV4

Bruno PY2TOZApr 24

Pro-tip: if your #esp32 device (like a #HeltecV4) is unable to connect to your WiFi router, try changing the 2.4 GHz bandwidth to 20/40 MHz instead of 40 MHz.

#lora #meshcore #meshtastic

sb arms & legsApr 2

Built my first #meshtastic node, as a portable, using the #heltecV4. Has about 4 days of battery life.

Also building an outdoor node with a moxon antenna and 10w solar charger.

Show threadddippMar 24
Для "дрыгания" ногами heltec v4 и heltec t114 нужно собрать firmware самостоятельно с опцией удаленного управления gpio.
Ну собственно все заработало.
#мештастик #meshtastic #heltecv4 #heltecht114 #heltect114v2
DanielMar 20

#MeshCore v1.14.1 is out with a fix that regularly syncs time via GPS.

The reason: clock drift especially with powersaving on 🌞🔋

https://github.com/meshcore-dev/MeshCore/pull/1350

This confirms the clock drift of 30+ minutes that I'm seeing after a week or so on my #HeltecV4 (esp32) with powersaving on.

Unfortunately these small devices do not come with a GPS module by default and the GPS module itself would also use up more power:

https://chaos.social/@djh/116240840413091152

Does not look good for solar repeaters ☹️

Show threadBruno PY2TOZMar 18

@finn What a coincidence! I'm trying to tackle this very issue right now. My #heltecv4 reboots on TX if the battery is under 3.7V and power is set to 22 dBm+.

I tried to insert a 1000uF cap just like you did, but it didn't work. I measured the voltage sag and it takes way longer to recover to baseline, whereas the capacitor can handle it just for a fraction of a second.

I wonder what I'm doing wrong... My temp solution was reducing TX power, which negates the only advantage of having a V4 😮‍💨

DanielMar 16

My remote #HeltecV4 #MeshCore solar repeater has a clock drift of about 20+ minutes after a week already.

On meshcore v1.14 with powersaving on. Tried clkreboot and synced clock already; second week and just happened again.

Anyone else experiencing massive clock drift on their heltec v4?

ddippMar 7
Товарищи радиолюбители, а кто знает, как мне прикрутить в #heltecv4 или в #heltect114 какой-то датчик или несколько и типа удаленно запрашивать их состояние?
Тут наверное вопрос даже не в конкретной реализации для конкретного датчика, а есть ли API в #мештастик #meshtastic для этого?
Датчики могут быть разные, лазерный дальномер, датчик силы тока и напряжения, разные. SPI и I2C в основном.
#lora
DanielMar 7

Interesting tx power measurements for #HeltecV4 on #MeshCore 🔋

Summary: Set tx to 10-17 dBm; bigger tx values increases power consumption by a lot for very little benefit:

https://github.com/meshcore-dev/MeshCore/issues/1708

That plus powersaving changes in v1.13 and now v1.14 will make these devices viable solar powered repeaters 😍

Heltec V4: Measured TX Power Output Table (firmware setting vs actual conducted dBm) · Issue #1708 · meshcore-dev/MeshCore

Heltec V4: Measured TX Power Output Table (firmware setting vs actual conducted dBm) Update: @towerviewcams followed up with a more rigorous test using a calibrated Rohde & Schwarz NRX power meter ...

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