From ca2b80f906fac2f3f547d20a73e608de07b737c2 Mon Sep 17 00:00:00 2001
From: embr <git@liclac.eu>
Date: Sun, 23 Apr 2023 19:23:28 +0200
Subject: [PATCH] pico w go blinky!

---
 CMakeLists.txt |  5 ++++-
 README.md      |  7 +++++++
 src/main.c     | 20 ++++++++++++++++++--
 3 files changed, 29 insertions(+), 3 deletions(-)
 create mode 100644 README.md

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 08bb3dc..15b988e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,7 +12,10 @@ add_executable(vibe-check
 )
 
 # Add pico_stdlib library which aggregates commonly used features
-target_link_libraries(vibe-check pico_stdlib)
+target_link_libraries(vibe-check
+    pico_stdlib
+    pico_cyw43_arch_none
+)
 
 # create map/bin/hex/uf2 file in addition to ELF.
 pico_add_extra_outputs(vibe-check)
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..57e4e78
--- /dev/null
+++ b/README.md
@@ -0,0 +1,7 @@
+## Build
+
+```
+# env -C lib/pico-sdk/ git submodule update --init
+# env -C build/ cmake .. -G Ninja -DPICO_BOARD=pico_w -DWIFI_SSID=YOUR_SSID_HERE -DWIFI_PASSWORD="your password here"
+# env -C build/ ninja
+```
diff --git a/src/main.c b/src/main.c
index bd67fad..2731f3e 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,8 +1,24 @@
 #include <stdio.h>
 #include "pico/stdlib.h"
+#include "pico/cyw43_arch.h"
+
+#ifndef CYW43_WL_GPIO_LED_PIN
+    #error no WiFi LED on board, wrong -DPICO_BOARD?
+#endif
 
 int main() {
-    setup_default_uart();
-    printf("Hello, world!\n");
+    stdio_init_all();
+    if (cyw43_arch_init()) {
+        printf("Wi-Fi init failed");
+        return -1;
+    }
+    while (true) {
+        printf("Hello, world!\n");
+        cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, 1);
+        sleep_ms(250);
+        printf("Goodbye, world!\n");
+        cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, 0);
+        sleep_ms(250);
+    }
     return 0;
 }