Add Neopixel functionality

.github/workflows/build.yaml

@@ -11,7 +11,7 @@ jobs:
   build:
     strategy:
       matrix:
-        teensy: ['32', '40', '40_blinker', '40_fan_hub', '32_fan_hub']
+        teensy: ['32', '40', '40_blinker', '40_fan_hub', '32_fan_hub', '40_neopixel', '40_neopixel_example']
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
@@ -31,8 +31,9 @@ jobs:
         cp .pio/build/teensy${{ matrix.teensy }}/firmware.hex firmware_teensy${{ matrix.teensy }}.hex
     - name: Upload artifact
       if: always()
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
+        name: firmware_teensy${{ matrix.teensy }}
         path: |
           firmware_teensy${{ matrix.teensy }}.hex
     - name: Upload firmware to release

CHANGELOG.md

@@ -1,3 +1,7 @@
+### 0.7.0 (2025/03/03)
+
+* Provide the ability to use Neopixels.
+
 ### 0.6.0 (2024/12/11)
 
 * Fix the usecase where an infinite loop would occur if no demo commands.

platformio.ini

@@ -46,6 +46,22 @@ build_src_filter =
     +<*.hpp>
     -<examples/*>
 
+; neopixel is LGPL, so just make a dedicated build for it
+[env:teensy40_neopixel]
+extends = env:teensy40
+lib_deps =
+    https://github.com/ramonaoptics/teensy4_i2c.git#our_mods
+    https://github.com/adafruit/Adafruit_NeoPixel.git
+build_flags =
+    !python versioneer.py
+    -DTEENSYTOANY_USE_NEOPIXEL
+build_src_filter =
+    +<*.c>
+    +<*.h>
+    +<*.cpp>
+    +<*.hpp>
+    -<examples/**>
+
 [env:teensy40_blinker]
 extends = env:teensy40
 build_src_filter =
@@ -86,3 +102,19 @@ build_src_filter =
     +<*.hpp>
     -<examples/**>
     +<examples/fan_hub_default_off/*>
+
+[env:teensy40_neopixel_example]
+extends = env:teensy40
+lib_deps =
+    https://github.com/ramonaoptics/teensy4_i2c.git#our_mods
+    https://github.com/adafruit/Adafruit_NeoPixel.git
+build_flags =
+    !python versioneer.py
+    -DTEENSYTOANY_USE_NEOPIXEL
+build_src_filter =
+    +<*.c>
+    +<*.h>
+    +<*.cpp>
+    +<*.hpp>
+    -<examples/**>
+    +<examples/neopixel_demo/*>

src/commandconstants.hpp

@@ -63,6 +63,16 @@ int register_write_uint32(CommandRouter *cmd, int argc, const char **argv);
 int eeprom_read_uint8(CommandRouter *cmd, int argc, const char **argv);
 int eeprom_write_uint8(CommandRouter *cmd, int argc, const char **argv);
 
+#ifdef TEENSYTOANY_USE_NEOPIXEL
+int neopixel_init(CommandRouter *cmd, int argc, const char **argv);
+int neopixel_begin(CommandRouter *cmd, int argc, const char **argv);
+int neopixel_update_length(CommandRouter *cmd, int argc, const char **argv);
+int neopixel_update_pin(CommandRouter *cmd, int argc, const char **argv);
+int neopixel_update_type(CommandRouter *cmd, int argc, const char **argv);
+int neopixel_show(CommandRouter *cmd, int argc, const char **argv);
+int neopixel_set_pixel_color(CommandRouter *cmd, int argc, const char **argv);
+#endif
+
 // Mostly for debugging and startup scripts
 int sleep_seconds(CommandRouter *cmd, int argc, const char **argv);
 int startup_commands_available(CommandRouter *cmd, int argc, const char **argv);
@@ -183,6 +193,22 @@ const command_item_t command_list[] = {
      "eeprom_read_uint8 address", eeprom_read_uint8},
     {"eeprom_write_uint8", "Write to an EEPROM address.",
      "eeprom_write_uint8 address data", eeprom_write_uint8},
+#ifdef TEENSYTOANY_USE_NEOPIXEL
+    {"neopixel_init", "Initialize the neopixel library",
+     "neopixel_init num_pixels pin type", neopixel_init},
+    {"neopixel_begin", "Begin the neopixel buffer",
+     "neopixel_begin", neopixel_begin},
+    {"neopixel_update_length", "Update the length of the neopixel buffer",
+     "neopixel_update_length num_pixels", neopixel_update_length},
+    {"neopixel_update_pin", "Update the pin of the neopixel buffer",
+     "neopixel_update_pin pin", neopixel_update_pin},
+    {"neopixel_update_type", "Update the type of the neopixel buffer",
+     "neopixel_update_type type", neopixel_update_type},
+    {"neopixel_show", "Show the current neopixel buffer",
+     "neopixel_show", neopixel_show},
+    {"neopixel_set_pixel_color", "Set the color of a pixel in the neopixel buffer",
+     "neopixel_set_pixel_color pixel red green blue", neopixel_set_pixel_color},
+#endif
     {"sleep", "Sleep (and block) for the desired duration",
      "sleep duration", sleep_seconds},
     {"startup_commands_available", "Number of startup commands available",

src/examples/neopixel_demo/neopixel_demo.cpp

@@ -0,0 +1,193 @@
+/* A small demo to show how the teensy-to-any can be used to control 5 neopixel LEDs.
+ *
+ * Ramona Optics - 2025
+ */
+const char *teensy_to_any_startup_commands[] = {
+    // Setup the LED as an indicator pin
+    "neopixel_update_pin 19",
+    "neopixel_update_length 5",
+
+    // set color to orange to indicate that we aren't ready yet
+    // It takes about 2-3 seconds for the serial module to boot up
+    // The teensy will be unresponsive during this time.
+    "neopixel_set_pixel_color 0 56 5 1 0",
+    "neopixel_set_pixel_color 1 56 5 1 0",
+    "neopixel_set_pixel_color 2 56 5 1 0",
+    "neopixel_set_pixel_color 3 56 5 1 0",
+    "neopixel_set_pixel_color 4 56 5 1 0",
+    "neopixel_begin",
+    "neopixel_show",
+    nullptr,
+};
+
+
+#define _SLEEP_1000ms ("sleep 0.2", "sleep 0.2", "sleep 0.2", "sleep 0.2", "sleep 0.2")
+#define _SLEEP_200ms ("sleep 0.2")
+#define _SLEEP_100ms ("sleep 0.1")
+#define _SLEEP_50ms ("sleep 0.05")
+
+#define _SLEEP_PATTERN _SLEEP_100ms
+
+// Change the fan speed
+const char *teensy_to_any_demo_commands[] = {
+    "neopixel_set_pixel_color 0 0 0 0 40",
+    "neopixel_set_pixel_color 1 40 0 0 0",
+    "neopixel_set_pixel_color 2 0 40 0 0",
+    "neopixel_set_pixel_color 3 0 0 40 0",
+    "neopixel_set_pixel_color 4 40 40 40 40",
+    "neopixel_show",
+    _SLEEP_PATTERN,
+
+    "neopixel_set_pixel_color 0 0 0 0 30",
+    "neopixel_set_pixel_color 1 30 0 0 0",
+    "neopixel_set_pixel_color 2 0 30 0 0",
+    "neopixel_set_pixel_color 3 0 0 30 0",
+    "neopixel_set_pixel_color 4 30 30 30 30",
+    "neopixel_show",
+    _SLEEP_PATTERN,
+
+    "neopixel_set_pixel_color 0 0 0 0 20",
+    "neopixel_set_pixel_color 1 20 0 0 0",
+    "neopixel_set_pixel_color 2 0 20 0 0",
+    "neopixel_set_pixel_color 3 0 0 20 0",
+    "neopixel_set_pixel_color 4 20 20 20 20",
+    "neopixel_show",
+    _SLEEP_PATTERN,
+
+    "neopixel_set_pixel_color 0 0 0 0 10",
+    "neopixel_set_pixel_color 1 10 0 0 0",
+    "neopixel_set_pixel_color 2 0 10 0 0",
+    "neopixel_set_pixel_color 3 0 0 10 0",
+    "neopixel_set_pixel_color 4 10 10 10 10",
+    "neopixel_show",
+    _SLEEP_PATTERN,
+
+    "neopixel_set_pixel_color 0 0 0 0 5",
+    "neopixel_set_pixel_color 1 5 0 0 0",
+    "neopixel_set_pixel_color 2 0 5 0 0",
+    "neopixel_set_pixel_color 3 0 0 5 0",
+    "neopixel_set_pixel_color 4 5 5 5 5",
+    "neopixel_show",
+    _SLEEP_PATTERN,
+
+    "neopixel_set_pixel_color 0 0 0 0 4",
+    "neopixel_set_pixel_color 1 4 0 0 0",
+    "neopixel_set_pixel_color 2 0 4 0 0",
+    "neopixel_set_pixel_color 3 0 0 4 0",
+    "neopixel_set_pixel_color 4 4 4 4 4",
+    "neopixel_show",
+    _SLEEP_PATTERN,
+
+    "neopixel_set_pixel_color 0 0 0 0 3",
+    "neopixel_set_pixel_color 1 3 0 0 0",
+    "neopixel_set_pixel_color 2 0 3 0 0",
+    "neopixel_set_pixel_color 3 0 0 3 0",
+    "neopixel_set_pixel_color 4 3 3 3 3",
+    "neopixel_show",
+    _SLEEP_PATTERN,
+
+    "neopixel_set_pixel_color 0 0 0 0 2",
+    "neopixel_set_pixel_color 1 2 0 0 0",
+    "neopixel_set_pixel_color 2 0 2 0 0",
+    "neopixel_set_pixel_color 3 0 0 2 0",
+    "neopixel_set_pixel_color 4 2 2 2 2",
+    "neopixel_show",
+    _SLEEP_PATTERN,
+
+    "neopixel_set_pixel_color 0 0 0 0 1",
+    "neopixel_set_pixel_color 1 1 0 0 0",
+    "neopixel_set_pixel_color 2 0 1 0 0",
+    "neopixel_set_pixel_color 3 0 0 1 0",
+    "neopixel_set_pixel_color 4 1 1 1 1",
+    "neopixel_show",
+    _SLEEP_PATTERN,
+
+    "neopixel_set_pixel_color 0 0 0 0 00",
+    "neopixel_set_pixel_color 1 00 0 0 0",
+    "neopixel_set_pixel_color 2 0 00 0 0",
+    "neopixel_set_pixel_color 3 0 0 00 0",
+    "neopixel_set_pixel_color 4 00 00 00 00",
+    "neopixel_show",
+    _SLEEP_PATTERN,
+
+    "neopixel_set_pixel_color 0 0 0 0 1",
+    "neopixel_set_pixel_color 1 1 0 0 0",
+    "neopixel_set_pixel_color 2 0 1 0 0",
+    "neopixel_set_pixel_color 3 0 0 1 0",
+    "neopixel_set_pixel_color 4 1 1 1 1",
+    "neopixel_show",
+    _SLEEP_PATTERN,
+
+    "neopixel_set_pixel_color 0 0 0 0 2",
+    "neopixel_set_pixel_color 1 2 0 0 0",
+    "neopixel_set_pixel_color 2 0 2 0 0",
+    "neopixel_set_pixel_color 3 0 0 2 0",
+    "neopixel_set_pixel_color 4 2 2 2 2",
+    "neopixel_show",
+    _SLEEP_PATTERN,
+
+    "neopixel_set_pixel_color 0 0 0 0 3",
+    "neopixel_set_pixel_color 1 3 0 0 0",
+    "neopixel_set_pixel_color 2 0 3 0 0",
+    "neopixel_set_pixel_color 3 0 0 3 0",
+    "neopixel_set_pixel_color 4 3 3 3 3",
+    "neopixel_show",
+    _SLEEP_PATTERN,
+
+    "neopixel_set_pixel_color 0 0 0 0 4",
+    "neopixel_set_pixel_color 1 4 0 0 0",
+    "neopixel_set_pixel_color 2 0 4 0 0",
+    "neopixel_set_pixel_color 3 0 0 4 0",
+    "neopixel_set_pixel_color 4 4 4 4 4",
+    "neopixel_show",
+    _SLEEP_PATTERN,
+
+    "neopixel_set_pixel_color 0 0 0 0 5",
+    "neopixel_set_pixel_color 1 5 0 0 0",
+    "neopixel_set_pixel_color 2 0 5 0 0",
+    "neopixel_set_pixel_color 3 0 0 5 0",
+    "neopixel_set_pixel_color 4 5 5 5 5",
+    "neopixel_show",
+    _SLEEP_PATTERN,
+
+    "neopixel_set_pixel_color 0 0 0 0 10",
+    "neopixel_set_pixel_color 1 10 0 0 0",
+    "neopixel_set_pixel_color 2 0 10 0 0",
+    "neopixel_set_pixel_color 3 0 0 10 0",
+    "neopixel_set_pixel_color 4 10 10 10 10",
+    "neopixel_show",
+    _SLEEP_PATTERN,
+
+    "neopixel_set_pixel_color 0 0 0 0 20",
+    "neopixel_set_pixel_color 1 20 0 0 0",
+    "neopixel_set_pixel_color 2 0 20 0 0",
+    "neopixel_set_pixel_color 3 0 0 20 0",
+    "neopixel_set_pixel_color 4 20 20 20 20",
+    "neopixel_show",
+    _SLEEP_PATTERN,
+
+    "neopixel_set_pixel_color 0 0 0 0 30",
+    "neopixel_set_pixel_color 1 30 0 0 0",
+    "neopixel_set_pixel_color 2 0 30 0 0",
+    "neopixel_set_pixel_color 3 0 0 30 0",
+    "neopixel_set_pixel_color 4 30 30 30 30",
+    "neopixel_show",
+    _SLEEP_PATTERN,
+
+    "neopixel_set_pixel_color 0 0 0 0 40",
+    "neopixel_set_pixel_color 1 40 0 0 0",
+    "neopixel_set_pixel_color 2 0 40 0 0",
+    "neopixel_set_pixel_color 3 0 0 40 0",
+    "neopixel_set_pixel_color 4 40 40 40 40",
+    "neopixel_show",
+    _SLEEP_PATTERN,
+
+    "neopixel_set_pixel_color 0 0 0 0 50",
+    "neopixel_set_pixel_color 1 50 0 0 0",
+    "neopixel_set_pixel_color 2 0 50 0 0",
+    "neopixel_set_pixel_color 3 0 0 50 0",
+    "neopixel_set_pixel_color 4 50 50 50 50",
+    "neopixel_show",
+    _SLEEP_PATTERN,
+    nullptr,
+};