shot in the dark 2

Author: arcbtc

build.sh

@@ -4,7 +4,7 @@ arduino-cli config --additional-urls https://raw.githubusercontent.com/espressif
 arduino-cli core update-index
 arduino-cli upgrade
 # uBitcoin is broken on esp32 3.x.x
-arduino-cli core install esp32:esp32@2.0.17
+arduino-cli core install esp32:esp32
 arduino-cli lib install ArduinoJson Base64 Keypad uBitcoin
 arduino-cli compile \
     --build-property "build.partitions=min_spiffs" \