From 05be1c452844539c33057d5a48a778b47ed6db9a Mon Sep 17 00:00:00 2001
From: clerie <git@clerie.de>
Date: Sun, 3 Dec 2023 16:49:29 +0100
Subject: [PATCH] Explain runtimeInputs for special platforms

---
 README.md | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index df3a555..1373ed9 100644
--- a/README.md
+++ b/README.md
@@ -46,6 +46,10 @@ From the indexes you create overlays which then make the Arduino packages and li
       (arduino-nix.mkArduinoPackageOverlay (arduino-package-index + "/package_index.json"))
       (arduino-nix.mkArduinoPackageOverlay (arduino-package-rp2040-index + "/package_rp2040_index.json"))
       (arduino-nix.mkArduinoLibraryOverlay (arduino-library-index + "/library_index.json"))
+      (arduino-nix.mkArduinoPackageOverlay (pkgs.fetchurl {
+        url = "https://raw.githubusercontent.com/espressif/arduino-esp32/8bae7e23376c6087a55e46456049ae6d73b72e16/package_esp32_index.json";
+        hash = "sha256-0kvZeRDtE/JKJes86omyN4cf4HWfX68P7xPfE+BvTC8=";
+      }))
     ];
   in
   (flake-utils.lib.eachDefaultSystem (system:
@@ -54,7 +58,7 @@ From the indexes you create overlays which then make the Arduino packages and li
           inherit system overlays;
         };
 
-        // arduinoEnv provides bin/arduino-cli and some useful helpers functions
+        # arduinoEnv provides bin/arduino-cli and some useful helpers functions
         arduinoEnv = pkgs.makeArduinoEnv {
           libraries = with pkgs.arduinoLibraries; [
             (arduino-nix.latestVersion ADS1X15)
@@ -69,6 +73,18 @@ From the indexes you create overlays which then make the Arduino packages and li
             platforms.rp2040.rp2040."2.3.3"
           ];
         };
+
+        arduinoEnvESP32 = pkgs.makeArduinoEnv {
+          packages = with pkgs.arduinoPackages; [
+            platforms.esp32.esp32."2.0.14"
+          ];
+
+          # ESP32 tools require python with some custom dependencies
+          # we can provide them via runtimeInputs
+          runtimeInputs = with pkgs; [
+            (python3.withPackages(ps: with ps; [ pyserial ]))
+          ];
+        };
       in rec {
         packages = {
           inherit arduinoEnv;
@@ -78,6 +94,12 @@ From the indexes you create overlays which then make the Arduino packages and li
             src = ./. + "/my-rp2040-project";
             fqbn = "arduino:mbed_rp2040:pico";
           };
+
+          my-esp32-poe-iso-project = arduinoEnvESP32.buildArduinoSketch {
+            name = "my-esp32-poe-iso-project";
+            src = ./. + "/my-esp32-poe-iso-project";
+            fqbn = "esp32:esp32:esp32-poe-iso";
+          };
       }
     ));
 }