[DOCS] frame: the Pi 3 A+ is a drop-in for the Zero 2 W, same setup on either

frame/README.md

@@ -12,12 +12,14 @@ A [Pimoroni Inky Impression 13.3"](https://amzn.to/4xlAWr3) (Spectra 6) mirrorin
 
 | Qty | Description | Price | Link |
 |-----|-------------|-------|------|
-| 1 | Raspberry Pi Zero (2) W | ~$35 | [Amazon](https://amzn.to/49Xp58I) |
+| 1 | Raspberry Pi 3 A+ or Zero 2 W | ~$25-35 | [Amazon](https://amzn.to/49Xp58I) |
 | 1 | 13.3" E Ink Display     | $299.99 | [Amazon](https://amzn.to/4xlAWr3) |
 | 1 | A4 Wood Photo Frame    | $21.99 | [Amazon](https://amzn.to/3RWFbJE) |
 | 1 | Long, Flat Micro USB Cable    | $7.99 | [Amazon](https://a.co/d/0a59rKSk) |
 | 1 | Flat USB Brick    | $7.59 | [Amazon](https://amzn.to/3S4CtSs) |
-| | **Total** | **~$372** | | |
+| | **Total** | **~$365** | | |
+
+The 3 A+ and Zero 2 W are both tested and set up identically; any Pi with the 40-pin header that runs 64-bit Raspberry Pi OS works. The printed backing pressure-fits either board.
 
 CAD + 3d print files can be found in [`hardware/`](hardware/).
 

frame/display.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 """Frame-Pi client: turn a collage screenshot into Inky panel pixels.
 
-Runs on the Pi Zero W on a systemd timer. Each run it decides whether a
+Runs on the frame Pi (a 3 A+ or Zero 2 W) on a systemd timer. Each run it decides whether a
 refresh is worth it (the species set or call-count brackets changed, and it
 is not quiet hours), then crops the title and collage from the screenshot,
 centres and mats them, and pushes the result to the Inky Impression 13.3".
@@ -47,7 +47,7 @@ DEFAULTS = {
     "hours": 24,
     "image": "",            # local PNG written by the shooter
     "image_url": "",        # or a published screenshot URL
-    "shoot": False,         # or capture inline (needs a browser; the Zero 2 W handles it)
+    "shoot": False,         # or capture inline (needs a browser; the 3 A+ and Zero 2 W both handle it)
     "shoot_title": None, "shoot_subtitle": None,
     "shoot_headline_px": 42, "shoot_eyebrow_px": 18, "shoot_lowercase": False,
     "shoot_mat": 0.04, "shoot_small_floor": 0.04, "shoot_count_exp": 0.65,

frame/shoot.py

@@ -7,9 +7,9 @@ titles, and rewrites a few of the page's own apt.js tunables at capture time
 (cluster bias, count-to-size exponent, a rare-bird floor). The result is the
 actual website, framed for the wall, with no changes to AvianVisitors.
 
-Needs a real headless browser, so it runs on any 64-bit capable machine, NOT
-the Pi Zero W driving the panel. Writes a 1200x1600 PNG; display.py turns it
-into panel pixels.
+Needs a real headless browser, so it runs on any 64-bit capable machine,
+including the frame's own Pi (3 A+ / Zero 2 W) but NOT an original ARMv6
+Pi Zero W. Writes a 1200x1600 PNG; display.py turns it into panel pixels.
 
   pip install playwright && playwright install chromium
   python3 shoot.py --url https://bird.onethreenine.net \