From 20cfad1d63500e640cd802d8bc88e934305b0ac9 Mon Sep 17 00:00:00 2001 From: janakelarsson Date: Fri, 5 Jun 2020 07:34:42 +0200 Subject: [PATCH] Don't use RESET_N pin Data sheet discourages use of SARA modem reset pin, use may lead to irrecoverable state of modem --- variants/mkrnb1500/variant.cpp | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/variants/mkrnb1500/variant.cpp b/variants/mkrnb1500/variant.cpp index acaf9cdf2..5e61669e5 100644 --- a/variants/mkrnb1500/variant.cpp +++ b/variants/mkrnb1500/variant.cpp @@ -252,9 +252,10 @@ void initVariant() { pinMode(SARA_PWR_ON, OUTPUT); digitalWrite(SARA_PWR_ON, LOW); - // put SARA modem in reset on start to conserve power if it's not used + // data sheet discourages use of SARA modem reset pin + // use may lead to irrecoverable state of modem pinMode(SARA_RESETN, OUTPUT); - digitalWrite(SARA_RESETN, HIGH); + digitalWrite(SARA_RESETN, LOW); // set RTS to LOW pinMode(SARA_RTS, OUTPUT);