From 6199ebaa927c9ff59d1f9120a7ba90122c40c35e Mon Sep 17 00:00:00 2001
From: Frank <91616163+softhack007@users.noreply.github.com>
Date: Fri, 29 Dec 2023 18:39:07 +0100
Subject: [PATCH]  MM environment for ESP32-C3 "mini" and "super mini" ( #101)

---
 platformio.ini | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/platformio.ini b/platformio.ini
index ad5fec29..8d14f9a1 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -77,6 +77,7 @@ default_envs =
   ;; esp32s2_tinyUF2_PSRAM_S  ;; experimental - only for adafruit -S2 boards with tinyUF2 bootloader !!!
   esp32s2_PSRAM_M          ;; experimental
   esp32c3dev_4MB_M         ;; experimental
+  esp32c3mini_dio_4MB_M    ;; for boards that need "dio" flash mode (instead of qio)
   seeed_esp32c3_4MB_S      ;; experimental
   esp32_4MB_V4_S           ;; experimental
   esp32_16MB_V4_S          ;; experimental, optimized for speed
@@ -1966,6 +1967,23 @@ lib_ignore =
 ; RAM:   [==        ]  23.7% (used 77780 bytes from 327680 bytes)
 ; Flash: [========= ]  93.9% (used 1477456 bytes from 1572864 bytes)
 
+;; MM environment for ESP32-C3 "mini" and "super mini" -> flash mode "dio" instead of "qio" (see #101)
+[env:esp32c3mini_dio_4MB_M]
+extends = env:esp32c3dev_4MB_M
+board = lolin_c3_mini
+board_build.flash_mode = dio ;; some super-mini boards are unstable with "qio" mode
+;; board_build.partitions = tools/WLED_ESP32_4MB_256KB_FS.csv ;; optional: 1.8MB firmware, 256KB filesystem (esptool erase_flash needed when changing from "standard WLED" partitions)
+;;; replace WLED_RELEASE_NAME, disable CDC_ON_BOOT
+build_unflags = ${env:esp32c3dev_4MB_M.build_unflags}
+  -DARDUINO_USB_CDC_ON_BOOT=1
+  -D WLED_RELEASE_NAME=esp32c3dev_4MB_M
+build_flags = ${env:esp32c3dev_4MB_M.build_flags}
+  -DARDUINO_USB_CDC_ON_BOOT=0
+  -D WLED_RELEASE_NAME=esp32c3mini_dio_4MB_M
+  -D WLED_DISABLE_BROWNOUT_DET    ;; the board only has a 500mA LDO, better to disable brownout detection
+  -D WLED_DISABLE_ADALIGHT        ;; to disable serial protocols for boards with CDC USB (Serial RX will receive junk commands, unless its pulled down by resistor)
+  -D HW_PIN_SDA=0 -D HW_PIN_SCL=1 ;; avoid pin conflicts
+
 ;; MM environment for "seeed xiao -C3" boards
 [env:seeed_esp32c3_4MB_S]
 extends = env:esp32c3dev_4MB_M