From 4f39be9c3b79e3eeb073e5d7d32771f76d66516d Mon Sep 17 00:00:00 2001
From: vaaski <admin@vaa.ski>
Date: Mon, 20 Jan 2025 21:44:58 +0100
Subject: [PATCH] targets: esp32c3-supermini (#4518)

---
 GNUmakefile                            |  2 +
 src/machine/board_esp32c3-supermini.go | 57 ++++++++++++++++++++++++++
 targets/esp32c3-supermini.json         |  4 ++
 3 files changed, 63 insertions(+)
 create mode 100644 src/machine/board_esp32c3-supermini.go
 create mode 100644 targets/esp32c3-supermini.json

diff --git a/GNUmakefile b/GNUmakefile
index 666021547..71480153f 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -828,6 +828,8 @@ endif
 ifneq ($(XTENSA), 0)
 	$(TINYGO) build -size short -o test.bin -target=esp32-mini32      	examples/blinky1
 	@$(MD5SUM) test.bin
+	$(TINYGO) build -size short -o test.bin -target=esp32c3-supermini   examples/blinky1
+	@$(MD5SUM) test.bin
 	$(TINYGO) build -size short -o test.bin -target=nodemcu             examples/blinky1
 	@$(MD5SUM) test.bin
 	$(TINYGO) build -size short -o test.bin -target m5stack-core2       examples/machinetest
diff --git a/src/machine/board_esp32c3-supermini.go b/src/machine/board_esp32c3-supermini.go
new file mode 100644
index 000000000..c180ff0e3
--- /dev/null
+++ b/src/machine/board_esp32c3-supermini.go
@@ -0,0 +1,57 @@
+//go:build esp32c3_supermini
+
+// This file contains the pin mappings for the ESP32 supermini boards.
+//
+// - https://web.archive.org/web/20240805232453/https://dl.artronshop.co.th/ESP32-C3%20SuperMini%20datasheet.pdf
+
+package machine
+
+// Digital Pins
+const (
+	IO0  = GPIO0
+	IO1  = GPIO1
+	IO2  = GPIO2
+	IO3  = GPIO3
+	IO4  = GPIO4
+	IO5  = GPIO5
+	IO6  = GPIO6
+	IO7  = GPIO7
+	IO8  = GPIO8
+	IO9  = GPIO9
+	IO10 = GPIO10
+	IO20 = GPIO20
+	IO21 = GPIO21
+)
+
+// Built-in LED
+const LED = GPIO8
+
+// Analog pins
+const (
+	A0 = GPIO0
+	A1 = GPIO1
+	A2 = GPIO2
+	A3 = GPIO3
+	A4 = GPIO4
+	A5 = GPIO5
+)
+
+// UART pins
+const (
+	UART_RX_PIN = GPIO20
+	UART_TX_PIN = GPIO21
+)
+
+// I2C pins
+const (
+	SDA_PIN = GPIO8
+	SCL_PIN = GPIO9
+)
+
+// SPI pins
+const (
+	SPI_MISO_PIN = GPIO5
+	SPI_MOSI_PIN = GPIO6
+	SPI_SS_PIN   = GPIO7
+	SPI_SCK_PIN  = GPIO4
+)
diff --git a/targets/esp32c3-supermini.json b/targets/esp32c3-supermini.json
new file mode 100644
index 000000000..3e4e40895
--- /dev/null
+++ b/targets/esp32c3-supermini.json
@@ -0,0 +1,4 @@
+{
+  "inherits": ["esp32c3"],
+  "build-tags": ["esp32c3_supermini"]
+}