Heltec WiFi LoRa32 V2 - use OLED?

micha-pr · February 23, 2024, 6:36pm

Hi,
if I try to compile the example code then will get

Compilation error: 'class Heltec_ESP32' has no member named 'display'

HelTecAutomation/Heltec_ESP32/blob/master/examples/ESP32/ADC_Read_Voltage/Battery_power/Battery_power.ino

/*
 * HelTec Automation(TM) Electricity detection example.
 *
 * Function summary:
 *
 * - Vext connected to 3.3V via a MOS-FET, the gate pin connected to GPIO21;
 *
 * - Battery power detection is achieved by detecting the voltage of GPIO13;
 *
 * - OLED display and PE4259(RF switch) use Vext as power supply;
 *
 * - WIFI Kit series V1 don't have Vext control function;
 *
 * HelTec AutoMation, Chengdu, China.
 * 成都惠利特自动化科技有限公司
 * https://heltec.org
 * support@heltec.cn
 *
 * this project also release in GitHub:
 * https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series

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Have tried different things - no idea.

How can I use the OLED display? Only with other lib?
Any idea? THANKS!