From e90ae33a994ade0fc428282d5e9917a2ca10e2e9 Mon Sep 17 00:00:00 2001
From: Phil Howard <phil@pimoroni.com>
Date: Tue, 2 May 2023 16:17:47 +0100
Subject: [PATCH] CI: All MicroPython builds use local board dirs.

Simplify the build to use *only* local (to pimoroni-pico) copies of MicroPython board config dirs.

This allows us to specify MICROPY_C_HEAP_SIZE (and potentially other options) in board config rather than at build-time.
---
 .github/workflows/micropython.yml             | 17 ++---------
 micropython/board/PICO/board.json             | 20 +++++++++++++
 micropython/board/PICO/mpconfigboard.cmake    |  2 ++
 micropython/board/PICO/mpconfigboard.h        |  3 ++
 micropython/board/PICO/pins.csv               | 28 +++++++++++++++++
 micropython/board/PICO_W/board.json           | 21 +++++++++++++
 micropython/board/PICO_W/manifest.py          |  3 ++
 micropython/board/PICO_W/mpconfigboard.cmake  |  8 +++++
 micropython/board/PICO_W/mpconfigboard.h      | 23 ++++++++++++++
 micropython/board/PICO_W/pins.csv             | 30 +++++++++++++++++++
 micropython/board/PICO_W_ENVIRO/manifest.py   |  7 ++---
 .../board/PICO_W_ENVIRO/mpconfigboard.cmake   |  2 ++
 micropython/board/PICO_W_INKY/manifest.py     |  5 ++--
 .../board/PICO_W_INKY/mpconfigboard.cmake     |  2 ++
 .../board/PIMORONI_PICOLIPO_16MB/board.json   | 22 ++++++++++++++
 .../mpconfigboard.cmake                       |  2 ++
 .../PIMORONI_PICOLIPO_16MB/mpconfigboard.h    | 20 +++++++++++++
 .../board/PIMORONI_PICOLIPO_4MB/board.json    | 22 ++++++++++++++
 .../PIMORONI_PICOLIPO_4MB/mpconfigboard.cmake |  2 ++
 .../PIMORONI_PICOLIPO_4MB/mpconfigboard.h     | 20 +++++++++++++
 .../board/PIMORONI_TINY2040/board.json        | 20 +++++++++++++
 .../PIMORONI_TINY2040/mpconfigboard.cmake     |  2 ++
 .../board/PIMORONI_TINY2040/mpconfigboard.h   | 18 +++++++++++
 .../PIMORONI_TUFTY2040/mpconfigboard.cmake    |  2 ++
 24 files changed, 280 insertions(+), 21 deletions(-)
 create mode 100644 micropython/board/PICO/board.json
 create mode 100644 micropython/board/PICO/mpconfigboard.cmake
 create mode 100644 micropython/board/PICO/mpconfigboard.h
 create mode 100644 micropython/board/PICO/pins.csv
 create mode 100644 micropython/board/PICO_W/board.json
 create mode 100644 micropython/board/PICO_W/manifest.py
 create mode 100644 micropython/board/PICO_W/mpconfigboard.cmake
 create mode 100644 micropython/board/PICO_W/mpconfigboard.h
 create mode 100644 micropython/board/PICO_W/pins.csv
 create mode 100644 micropython/board/PIMORONI_PICOLIPO_16MB/board.json
 create mode 100644 micropython/board/PIMORONI_PICOLIPO_16MB/mpconfigboard.cmake
 create mode 100644 micropython/board/PIMORONI_PICOLIPO_16MB/mpconfigboard.h
 create mode 100644 micropython/board/PIMORONI_PICOLIPO_4MB/board.json
 create mode 100644 micropython/board/PIMORONI_PICOLIPO_4MB/mpconfigboard.cmake
 create mode 100644 micropython/board/PIMORONI_PICOLIPO_4MB/mpconfigboard.h
 create mode 100644 micropython/board/PIMORONI_TINY2040/board.json
 create mode 100644 micropython/board/PIMORONI_TINY2040/mpconfigboard.cmake
 create mode 100644 micropython/board/PIMORONI_TINY2040/mpconfigboard.h

diff --git a/.github/workflows/micropython.yml b/.github/workflows/micropython.yml
index 1d217480..feb68aa7 100644
--- a/.github/workflows/micropython.yml
+++ b/.github/workflows/micropython.yml
@@ -78,10 +78,8 @@ jobs:
           board: PIMORONI_PICOLIPO_16MB
         - name: tufty2040
           board: PIMORONI_TUFTY2040
-          local_board_dir: true
         - name: enviro
           board: PICO_W_ENVIRO
-          local_board_dir: true
           patch: true
         - name: galactic_unicorn
           board: PICO_W
@@ -89,7 +87,6 @@ jobs:
           board: PICO_W
         - name: inky_frame
           board: PICO_W_INKY
-          local_board_dir: true
           patch: true
 
     env:
@@ -145,20 +142,12 @@ jobs:
       run: |
         $GITHUB_WORKSPACE/pimoroni-pico-${{ github.sha }}/micropython/board/pico-sdk-patch.sh ${{matrix.board}}
 
-    - name: Configure MicroPython (Local Board Dir)
-      if: matrix.local_board_dir == true
+    - name: Configure MicroPython
       shell: bash
       working-directory: micropython/ports/rp2
       run: |
-        cmake -S . -B build-${{matrix.name}} -DPICO_BUILD_DOCS=0 -DUSER_C_MODULES=${{env.USER_C_MODULES}} -DMICROPY_BOARD_DIR=${{env.MICROPY_BOARD_DIR}} -DMICROPY_C_HEAP_SIZE=4096 -DMICROPY_BOARD=${{matrix.board}} -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
-    
-    - name: Configure MicroPython (Upstream Board Dir)
-      if: matrix.local_board_dir != true
-      shell: bash
-      working-directory: micropython/ports/rp2
-      run: |
-        cmake -S . -B build-${{matrix.name}} -DPICO_BUILD_DOCS=0 -DUSER_C_MODULES=${{env.USER_C_MODULES}} -DMICROPY_C_HEAP_SIZE=4096 -DMICROPY_BOARD=${{matrix.board}} -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
-  
+        cmake -S . -B build-${{matrix.name}} -DPICO_BUILD_DOCS=0 -DUSER_C_MODULES=${{env.USER_C_MODULES}} -DMICROPY_BOARD_DIR=${{env.MICROPY_BOARD_DIR}} -DMICROPY_BOARD=${{matrix.board}} -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
+
     - name: Build MicroPython  # Multiple simultaneous jobs trigger https://github.com/pimoroni/pimoroni-pico/issues/761
       shell: bash
       working-directory: micropython/ports/rp2
diff --git a/micropython/board/PICO/board.json b/micropython/board/PICO/board.json
new file mode 100644
index 00000000..5a67a25e
--- /dev/null
+++ b/micropython/board/PICO/board.json
@@ -0,0 +1,20 @@
+{
+    "deploy": [
+        "../deploy.md"
+    ],
+    "docs": "",
+    "features": [
+        "Breadboard friendly",
+        "Castellated Pads",
+        "Micro USB"
+    ],
+    "id": "rp2-pico",
+    "images": [
+        "rp2-pico.jpg"
+    ],
+    "mcu": "rp2040",
+    "product": "Pico",
+    "thumbnail": "",
+    "url": "https://www.raspberrypi.com/products/raspberry-pi-pico/",
+    "vendor": "Raspberry Pi"
+}
\ No newline at end of file
diff --git a/micropython/board/PICO/mpconfigboard.cmake b/micropython/board/PICO/mpconfigboard.cmake
new file mode 100644
index 00000000..6512b7f3
--- /dev/null
+++ b/micropython/board/PICO/mpconfigboard.cmake
@@ -0,0 +1,2 @@
+# cmake file for Raspberry Pi Pico
+set(MICROPY_C_HEAP_SIZE 4096)
\ No newline at end of file
diff --git a/micropython/board/PICO/mpconfigboard.h b/micropython/board/PICO/mpconfigboard.h
new file mode 100644
index 00000000..8534e4e2
--- /dev/null
+++ b/micropython/board/PICO/mpconfigboard.h
@@ -0,0 +1,3 @@
+// Board and hardware specific configuration
+#define MICROPY_HW_BOARD_NAME                   "Raspberry Pi Pico"
+#define MICROPY_HW_FLASH_STORAGE_BYTES          (1408 * 1024)
\ No newline at end of file
diff --git a/micropython/board/PICO/pins.csv b/micropython/board/PICO/pins.csv
new file mode 100644
index 00000000..9c40b41c
--- /dev/null
+++ b/micropython/board/PICO/pins.csv
@@ -0,0 +1,28 @@
+GP0,GPIO0
+GP1,GPIO1
+GP2,GPIO2
+GP3,GPIO3
+GP4,GPIO4
+GP5,GPIO5
+GP6,GPIO6
+GP7,GPIO7
+GP8,GPIO8
+GP9,GPIO9
+GP10,GPIO10
+GP11,GPIO11
+GP12,GPIO12
+GP13,GPIO13
+GP14,GPIO14
+GP15,GPIO15
+GP16,GPIO16
+GP17,GPIO17
+GP18,GPIO18
+GP19,GPIO19
+GP20,GPIO20
+GP21,GPIO21
+GP22,GPIO22
+GP25,GPIO25
+GP26,GPIO26
+GP27,GPIO27
+GP28,GPIO28
+LED,GPIO25
\ No newline at end of file
diff --git a/micropython/board/PICO_W/board.json b/micropython/board/PICO_W/board.json
new file mode 100644
index 00000000..353072f7
--- /dev/null
+++ b/micropython/board/PICO_W/board.json
@@ -0,0 +1,21 @@
+{
+    "deploy": [
+        "../deploy.md"
+    ],
+    "docs": "",
+    "features": [
+        "Breadboard friendly",
+        "Castellated Pads",
+        "Micro USB",
+        "WiFi"
+    ],
+    "id": "rp2-pico-w",
+    "images": [
+        "rp2-pico-w.jpg"
+    ],
+    "mcu": "rp2040",
+    "product": "Pico W",
+    "thumbnail": "",
+    "url": "https://www.raspberrypi.com/products/raspberry-pi-pico/",
+    "vendor": "Raspberry Pi"
+}
\ No newline at end of file
diff --git a/micropython/board/PICO_W/manifest.py b/micropython/board/PICO_W/manifest.py
new file mode 100644
index 00000000..e8f4e278
--- /dev/null
+++ b/micropython/board/PICO_W/manifest.py
@@ -0,0 +1,3 @@
+include("$(PORT_DIR)/boards/manifest.py")
+
+require("bundle-networking")
\ No newline at end of file
diff --git a/micropython/board/PICO_W/mpconfigboard.cmake b/micropython/board/PICO_W/mpconfigboard.cmake
new file mode 100644
index 00000000..5a158651
--- /dev/null
+++ b/micropython/board/PICO_W/mpconfigboard.cmake
@@ -0,0 +1,8 @@
+# cmake file for Raspberry Pi Pico W
+set(MICROPY_PY_LWIP ON)
+set(MICROPY_PY_NETWORK_CYW43 ON)
+
+# Board specific version of the frozen manifest
+set(MICROPY_FROZEN_MANIFEST ${MICROPY_BOARD_DIR}/manifest.py)
+
+set(MICROPY_C_HEAP_SIZE 4096)
\ No newline at end of file
diff --git a/micropython/board/PICO_W/mpconfigboard.h b/micropython/board/PICO_W/mpconfigboard.h
new file mode 100644
index 00000000..a6ff8517
--- /dev/null
+++ b/micropython/board/PICO_W/mpconfigboard.h
@@ -0,0 +1,23 @@
+// Board and hardware specific configuration
+#define MICROPY_HW_BOARD_NAME                   "Raspberry Pi Pico W"
+
+// todo: We need something to check our binary size
+#define MICROPY_HW_FLASH_STORAGE_BYTES          (848 * 1024)
+
+// Enable networking.
+#define MICROPY_PY_NETWORK 1
+#define MICROPY_PY_NETWORK_HOSTNAME_DEFAULT     "PicoW"
+
+// CYW43 driver configuration.
+#define CYW43_USE_SPI (1)
+#define CYW43_LWIP (1)
+#define CYW43_GPIO (1)
+#define CYW43_SPI_PIO (1)
+
+// For debugging mbedtls - also set
+// Debug level (0-4) 1=warning, 2=info, 3=debug, 4=verbose
+// #define MODUSSL_MBEDTLS_DEBUG_LEVEL 1
+
+#define MICROPY_HW_PIN_EXT_COUNT    CYW43_WL_GPIO_COUNT
+
+#define MICROPY_HW_PIN_RESERVED(i) ((i) == CYW43_PIN_WL_HOST_WAKE || (i) == CYW43_PIN_WL_REG_ON)
\ No newline at end of file
diff --git a/micropython/board/PICO_W/pins.csv b/micropython/board/PICO_W/pins.csv
new file mode 100644
index 00000000..012bc7c7
--- /dev/null
+++ b/micropython/board/PICO_W/pins.csv
@@ -0,0 +1,30 @@
+GP0,GPIO0
+GP1,GPIO1
+GP2,GPIO2
+GP3,GPIO3
+GP4,GPIO4
+GP5,GPIO5
+GP6,GPIO6
+GP7,GPIO7
+GP8,GPIO8
+GP9,GPIO9
+GP10,GPIO10
+GP11,GPIO11
+GP12,GPIO12
+GP13,GPIO13
+GP14,GPIO14
+GP15,GPIO15
+GP16,GPIO16
+GP17,GPIO17
+GP18,GPIO18
+GP19,GPIO19
+GP20,GPIO20
+GP21,GPIO21
+GP22,GPIO22
+GP26,GPIO26
+GP27,GPIO27
+GP28,GPIO28
+WL_GPIO0,EXT_GPIO0
+WL_GPIO1,EXT_GPIO1
+WL_GPIO2,EXT_GPIO2
+LED,EXT_GPIO0
\ No newline at end of file
diff --git a/micropython/board/PICO_W_ENVIRO/manifest.py b/micropython/board/PICO_W_ENVIRO/manifest.py
index d81af38e..59f779eb 100644
--- a/micropython/board/PICO_W_ENVIRO/manifest.py
+++ b/micropython/board/PICO_W_ENVIRO/manifest.py
@@ -1,6 +1,5 @@
 include("$(PORT_DIR)/boards/manifest.py")
 
-require("mip")
-require("ntptime")
-require("urequests")
-require("umqtt.simple")
\ No newline at end of file
+# https://github.com/micropython/micropython-lib/blob/master/micropython/bundles/bundle-networking/manifest.py
+require("bundle-networking")
+require("umqtt.simple")
diff --git a/micropython/board/PICO_W_ENVIRO/mpconfigboard.cmake b/micropython/board/PICO_W_ENVIRO/mpconfigboard.cmake
index acd48f26..b1241f6d 100644
--- a/micropython/board/PICO_W_ENVIRO/mpconfigboard.cmake
+++ b/micropython/board/PICO_W_ENVIRO/mpconfigboard.cmake
@@ -5,3 +5,5 @@ set(MICROPY_PY_LWIP ON)
 set(MICROPY_PY_NETWORK_CYW43 ON)
 
 set(MICROPY_FROZEN_MANIFEST ${MICROPY_BOARD_DIR}/manifest.py)
+
+set(MICROPY_C_HEAP_SIZE 4096)
\ No newline at end of file
diff --git a/micropython/board/PICO_W_INKY/manifest.py b/micropython/board/PICO_W_INKY/manifest.py
index bcd56662..571ec4ef 100644
--- a/micropython/board/PICO_W_INKY/manifest.py
+++ b/micropython/board/PICO_W_INKY/manifest.py
@@ -1,7 +1,6 @@
 include("$(PORT_DIR)/boards/manifest.py")
 
-require("mip")
-require("ntptime")
-require("urequests")
+# https://github.com/micropython/micropython-lib/blob/master/micropython/bundles/bundle-networking/manifest.py
+require("bundle-networking")
 require("urllib.urequest")
 require("umqtt.simple")
\ No newline at end of file
diff --git a/micropython/board/PICO_W_INKY/mpconfigboard.cmake b/micropython/board/PICO_W_INKY/mpconfigboard.cmake
index 434705a0..be167d17 100644
--- a/micropython/board/PICO_W_INKY/mpconfigboard.cmake
+++ b/micropython/board/PICO_W_INKY/mpconfigboard.cmake
@@ -5,3 +5,5 @@ set(MICROPY_PY_LWIP ON)
 set(MICROPY_PY_NETWORK_CYW43 ON)
 
 set(MICROPY_FROZEN_MANIFEST ${MICROPY_BOARD_DIR}/manifest.py)
+
+set(MICROPY_C_HEAP_SIZE 4096)
\ No newline at end of file
diff --git a/micropython/board/PIMORONI_PICOLIPO_16MB/board.json b/micropython/board/PIMORONI_PICOLIPO_16MB/board.json
new file mode 100644
index 00000000..9121154d
--- /dev/null
+++ b/micropython/board/PIMORONI_PICOLIPO_16MB/board.json
@@ -0,0 +1,22 @@
+{
+    "deploy": [
+        "../deploy.md"
+    ],
+    "docs": "",
+    "features": [
+        "Battery Charging",
+        "Breadboard Friendly",
+        "Castellated Pads",
+        "SPI Flash",
+        "STEMMA QT/QWIIC",
+        "USB-C"
+    ],
+    "images": [
+        "PimoroniPicoLipo_1of3_1024x1024.jpg"
+    ],
+    "mcu": "rp2040",
+    "product": "Pico LiPo (16MiB)",
+    "thumbnail": "",
+    "url": "https://shop.pimoroni.com/products/pimoroni-pico-lipo",
+    "vendor": "Pimoroni"
+}
diff --git a/micropython/board/PIMORONI_PICOLIPO_16MB/mpconfigboard.cmake b/micropython/board/PIMORONI_PICOLIPO_16MB/mpconfigboard.cmake
new file mode 100644
index 00000000..92f79e52
--- /dev/null
+++ b/micropython/board/PIMORONI_PICOLIPO_16MB/mpconfigboard.cmake
@@ -0,0 +1,2 @@
+# cmake file for Pimoroni Pico LiPo 16MB
+set(MICROPY_C_HEAP_SIZE 4096)
diff --git a/micropython/board/PIMORONI_PICOLIPO_16MB/mpconfigboard.h b/micropython/board/PIMORONI_PICOLIPO_16MB/mpconfigboard.h
new file mode 100644
index 00000000..a90ef678
--- /dev/null
+++ b/micropython/board/PIMORONI_PICOLIPO_16MB/mpconfigboard.h
@@ -0,0 +1,20 @@
+// https://shop.pimoroni.com/products/pimoroni-pico-lipo?variant=39335427080275
+
+#define MICROPY_HW_BOARD_NAME          "Pimoroni Pico LiPo 16MB"
+#define MICROPY_HW_FLASH_STORAGE_BYTES (15 * 1024 * 1024)
+
+#define MICROPY_HW_USB_VID (0x2E8A)
+#define MICROPY_HW_USB_PID (0x1003)
+
+#define MICROPY_HW_UART1_TX  (8)
+#define MICROPY_HW_UART1_RX  (9)
+#define MICROPY_HW_UART1_CTS (10)
+#define MICROPY_HW_UART1_RTS (11)
+
+// User LED GPIO25
+
+// VBUS_SENSE GPIO24
+
+// BAT_SENSE GPIO29
+
+// Boot button GPIO23
diff --git a/micropython/board/PIMORONI_PICOLIPO_4MB/board.json b/micropython/board/PIMORONI_PICOLIPO_4MB/board.json
new file mode 100644
index 00000000..69d85323
--- /dev/null
+++ b/micropython/board/PIMORONI_PICOLIPO_4MB/board.json
@@ -0,0 +1,22 @@
+{
+    "deploy": [
+        "../deploy.md"
+    ],
+    "docs": "",
+    "features": [
+        "Battery Charging",
+        "Breadboard Friendly",
+        "Castellated Pads",
+        "SPI Flash",
+        "STEMMA QT/QWIIC",
+        "USB-C"
+    ],
+    "images": [
+        "PimoroniPicoLipo_1of3_1024x1024.jpg"
+    ],
+    "mcu": "rp2040",
+    "product": "Pico LiPo (4MiB)",
+    "thumbnail": "",
+    "url": "https://shop.pimoroni.com/products/pimoroni-pico-lipo",
+    "vendor": "Pimoroni"
+}
diff --git a/micropython/board/PIMORONI_PICOLIPO_4MB/mpconfigboard.cmake b/micropython/board/PIMORONI_PICOLIPO_4MB/mpconfigboard.cmake
new file mode 100644
index 00000000..5c2aa5c6
--- /dev/null
+++ b/micropython/board/PIMORONI_PICOLIPO_4MB/mpconfigboard.cmake
@@ -0,0 +1,2 @@
+# cmake file for Pimoroni Pico LiPo 4MB
+set(MICROPY_C_HEAP_SIZE 4096)
diff --git a/micropython/board/PIMORONI_PICOLIPO_4MB/mpconfigboard.h b/micropython/board/PIMORONI_PICOLIPO_4MB/mpconfigboard.h
new file mode 100644
index 00000000..53ade729
--- /dev/null
+++ b/micropython/board/PIMORONI_PICOLIPO_4MB/mpconfigboard.h
@@ -0,0 +1,20 @@
+// https://shop.pimoroni.com/products/pimoroni-pico-lipo?variant=39386149093459
+
+#define MICROPY_HW_BOARD_NAME          "Pimoroni Pico LiPo 4MB"
+#define MICROPY_HW_FLASH_STORAGE_BYTES (3 * 1024 * 1024)
+
+#define MICROPY_HW_USB_VID (0x2E8A)
+#define MICROPY_HW_USB_PID (0x1002)
+
+#define MICROPY_HW_UART1_TX  (8)
+#define MICROPY_HW_UART1_RX  (9)
+#define MICROPY_HW_UART1_CTS (10)
+#define MICROPY_HW_UART1_RTS (11)
+
+// User LED GPIO25
+
+// VBUS_SENSE GPIO24
+
+// BAT_SENSE GPIO29
+
+// Boot button GPIO23
diff --git a/micropython/board/PIMORONI_TINY2040/board.json b/micropython/board/PIMORONI_TINY2040/board.json
new file mode 100644
index 00000000..753a25be
--- /dev/null
+++ b/micropython/board/PIMORONI_TINY2040/board.json
@@ -0,0 +1,20 @@
+{
+    "deploy": [
+        "../deploy.md"
+    ],
+    "docs": "",
+    "features": [
+        "Breadboard Friendly",
+        "Castellated Pads",
+        "RGB LED",
+        "USB-C"
+    ],
+    "images": [
+        "tiny-2040-on-white-1_1024x1024.jpg"
+    ],
+    "mcu": "rp2040",
+    "product": "Tiny2040",
+    "thumbnail": "",
+    "url": "https://shop.pimoroni.com/products/tiny-2040",
+    "vendor": "Pimoroni"
+}
diff --git a/micropython/board/PIMORONI_TINY2040/mpconfigboard.cmake b/micropython/board/PIMORONI_TINY2040/mpconfigboard.cmake
new file mode 100644
index 00000000..7474782f
--- /dev/null
+++ b/micropython/board/PIMORONI_TINY2040/mpconfigboard.cmake
@@ -0,0 +1,2 @@
+# cmake file for Pimoroni Tiny 2040
+set(MICROPY_C_HEAP_SIZE 4096)
diff --git a/micropython/board/PIMORONI_TINY2040/mpconfigboard.h b/micropython/board/PIMORONI_TINY2040/mpconfigboard.h
new file mode 100644
index 00000000..ea40a807
--- /dev/null
+++ b/micropython/board/PIMORONI_TINY2040/mpconfigboard.h
@@ -0,0 +1,18 @@
+// https://shop.pimoroni.com/products/tiny-2040
+
+#define MICROPY_HW_BOARD_NAME          "Pimoroni Tiny 2040"
+#define MICROPY_HW_FLASH_STORAGE_BYTES (7 * 1024 * 1024)
+
+#define MICROPY_HW_USB_VID (0x16D0)
+#define MICROPY_HW_USB_PID (0x08C7)
+
+// I2C0 (non-default)
+#define MICROPY_HW_I2C0_SCL  (4)
+#define MICROPY_HW_I2C0_SDA  (5)
+
+// RGB LED, active low
+// Red LED 18
+// Green LED 19
+// Blue LED 20
+
+// Boot button GPIO23
diff --git a/micropython/board/PIMORONI_TUFTY2040/mpconfigboard.cmake b/micropython/board/PIMORONI_TUFTY2040/mpconfigboard.cmake
index f952202f..2268a6df 100644
--- a/micropython/board/PIMORONI_TUFTY2040/mpconfigboard.cmake
+++ b/micropython/board/PIMORONI_TUFTY2040/mpconfigboard.cmake
@@ -3,3 +3,5 @@ set(PICO_BOARD "pimoroni_tufty2040")
 
 # Allow Pico SDK to locate "pimoroni_tufty2040.h" in this directory.
 list(APPEND PICO_BOARD_HEADER_DIRS "${CMAKE_CURRENT_LIST_DIR}")
+
+set(MICROPY_C_HEAP_SIZE 4096)
\ No newline at end of file