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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@user132484
Hi,
Glad to hear that a "simple" modification as the antenna length can make a difference !
(found this article on this topic : http://gaidi.ca/weblog/designing-a-bluetooth-antenna-how-to-go-about-it).
My peripheral is using a ceramic chip antenna, bangle js too ?(from opening video, no long antenna visible...). I don't know how easy this type of antenna can be replaced.
from https://www.digi.com/support/forum/6926/is-it-possible-to-replace-a-chip-antenna-with-a-wire-one , it looks possible.
I read some old post on the forum talking about BLe efficiency, where you talked about the +4dbm max that offers the nrf chip and the fact that it is the default value.
I did same with my peripheral (the nRF52840 chip can go up to +8dbm), the modification of the tx power only affects one Ble role . https://devzone.nordicsemi.com/f/nordic-q-a/36531/how-do-you-set-tx-power-for-all-power-roles.
Do you know if the call to the function affects everywhere ? (Anyways a change of +4dbm is not sensible, so it won't solve the issue).