From 14ab1bb8b614055e0bf4ad33799276b0017ca13e Mon Sep 17 00:00:00 2001
From: Martin Budden <mjbudden@gmail.com>
Date: Fri, 13 Aug 2021 10:05:27 +0100
Subject: [PATCH] Added Raspberry Pi Pico.

---
 vitamins/pcb.scad  |  6 ++++--
 vitamins/pcbs.scad | 24 +++++++++++++++++++++++-
 2 files changed, 27 insertions(+), 3 deletions(-)

diff --git a/vitamins/pcb.scad b/vitamins/pcb.scad
index e8361ea..e48ca0f 100644
--- a/vitamins/pcb.scad
+++ b/vitamins/pcb.scad
@@ -60,8 +60,10 @@ function pcb_component(type, name, index = 0) = //! Return the component specifi
 
 
 function pcb_grid_pos(type, x, y, z = 0) = //! Returns a pcb grid position
-    [-pcb_length(type) / 2 + pcb_grid(type).x + 2.54 * x,
-     -pcb_width(type)  / 2 + pcb_grid(type).y + 2.54 * y, pcb_thickness(type) + z];
+    let(grid = pcb_grid(type))
+        [-pcb_size(type).x / 2 + grid.x + x * (is_undef(grid[5]) ? 2.54 : grid[5]),
+         -pcb_size(type).y / 2 + grid.y + y * (is_undef(grid[6]) ? 2.54 : grid[6]),
+          pcb_size(type).z + z];
 
 module pcb_grid(type, x, y, z = 0)  //! Positions children at specified grid position
     translate(pcb_grid_pos(type, x, y, z))
diff --git a/vitamins/pcbs.scad b/vitamins/pcbs.scad
index abf03a3..90dbed1 100644
--- a/vitamins/pcbs.scad
+++ b/vitamins/pcbs.scad
@@ -555,6 +555,28 @@ RPI0 =  ["RPI0", "Raspberry Pi Zero",     65,    30,    1.4, 3,    2.75, 6, "gre
     [": Micro SD card"],
     [32.5 - 9.5 * 2.54, 26.5 - 1.27, 20, 2]];
 
+RPI_Pico = [
+    "RPI_Pico", "Raspberry Pi Pico",
+    51, 21, 1.6, // size
+    0.5, // corner radius
+    2.1, // mounting hole diameter
+    0, // pad around mounting hole, pad is actually 3.8, but unplated
+    "green", // colour
+    false, // true if parts should be separate BOM items
+    [ // hole positions
+        [-2, 4.8], [-2, -4.8], [2, -4.8], [2, 4.8]
+    ],
+    [ // components
+        [  1.75, 21/2, 180, "usb_uA" ],
+        [ 25,    21/2,   0, "chip", 7, 7, 0.8],
+        // mock up the reset button
+        [ 12.75, 7.5,    0, "block", 4.5, 3.35, 2,    "DarkGray"],
+        [ 12.75, 7.5,    0, "block", 3,   2.25, 2.75, "LightGray"],
+    ],
+    [], // accessories
+    [1.37, 1.61, 20, 2, gold, 2.54, 17.78], // 20x2 grid of holes
+];
+
 EnviroPlus =  ["EnviroPlus", "Enviro+",     65,    30.6,    1.6, 3,    2.75, 6, "white", false, [[3.5, 3.8], [-3.5, 3.8], [-3.5, -3.8], [3.5, -3.8]],
     [[32.5, -3.8,   0, "-2p54socket", 20, 2, false, 5, true],
      [-15.5, 2.5,   0, "-chip", 15, 5, 3, "white"],
@@ -798,7 +820,7 @@ LIPO_fuel_gauge = [
 
 tiny_pcbs = [XIAO, MP1584EN, TP4056, ESP_01, LIPO_fuel_gauge];
 
-pcbs = [RAMPSEndstop, MT3608, PI_IO, ExtruderPCB, ZC_A0591, RPI0, EnviroPlus, ArduinoUno3, ArduinoLeonardo, WD2002SJ, RPI3, RPI4, BTT_SKR_MINI_E3_V2_0, BTT_SKR_E3_TURBO, BTT_SKR_V1_4_TURBO, DuetE, Duex5];
+pcbs = [RAMPSEndstop, MT3608, PI_IO, ExtruderPCB, ZC_A0591, RPI_Pico, RPI0, EnviroPlus, ArduinoUno3, ArduinoLeonardo, WD2002SJ, RPI3, RPI4, BTT_SKR_MINI_E3_V2_0, BTT_SKR_E3_TURBO, BTT_SKR_V1_4_TURBO, DuetE, Duex5];
 
 pcbs_not_shown = [Melzi, Duex2, PSU12V1A, Keyes5p1];