Add world.amyboard.download: run AMYboard World sketches on Tulip too

docs/amyboard/online.md

@@ -240,6 +240,15 @@ You can search or see everyone's uploaded sketches. They contain both patches an
 
 You can upload your own environments or patches here. Choose a memorable username and describe your work!
 
+You can also fetch and run AMYboard World sketches straight from any Python REPL — on AMYboard, on Tulip CC / Tulip Desktop, and on both web ports:
+
+```python
+world.amyboard.ls()                          # list recent sketches
+world.amyboard.download("eno_ambient", "dpwe")  # download the sketch and start it
+```
+
+On Tulip, the sketch starts the same way it does on AMYboard (synths reset, saved knob state applied, `loop()` on the sequencer); CV in/out calls no-op, while I2C accessories like the OLED display and rotary encoders work.
+
 
 
 [Back to Getting Started](README.md)

docs/tulip_api.md

@@ -162,6 +162,19 @@ world.download(package_name) # Downloads a package and extracts it
 
 world.ls() # lists most recent unique filenames/usernames
 world.ls(100) # optional count (most recent)
+
+# AMYboard World: sketches shared on amyboard.com also run on Tulip.
+# download() fetches the latest sketch.py into user/current/ and starts it the
+# AMYboard way: synths reset, the sketch's saved knob state applied, and its
+# loop() scheduled on the sequencer. CV in/out calls no-op on Tulip; I2C
+# accessories (OLED display, rotary encoders) work.
+world.amyboard.download(sketch_name) # e.g. world.amyboard.download("eno_ambient")
+world.amyboard.download(sketch_name, username) # latest version by a specific user
+world.amyboard.download(sketch_name, username, start=False) # just download, don't run
+world.amyboard.ls() # lists most recent AMYboard World sketches
+
+import amyboard
+amyboard.stop_sketch() # stops a running sketch's loop()
 ```
 
 Big note: Tulip World is hosted by a bot running on the [Tulip/AMY/Alles Discord](https://discord.gg/TzBFkUb8pG). If there's any abuse of the system, I'll revoke the key. I'd love more help making Tulip World a more stable and fun experience for everyone. 

tulip/esp32s3/boards/manifest.py

@@ -21,6 +21,9 @@
 require("umqtt.simple")
 
 freeze("$(PORT_DIR)/../shared/py")
+# AMYboard's python module, so Tulip can run AMYboard World sketches
+# (world.amyboard.download). CV helpers no-op on Tulip; I2C accessories work.
+freeze("$(PORT_DIR)/../shared/amyboard-py", "amyboard.py")
 package("amy", base_path="$(MPY_DIR)/../amy")
 
 #freeze("$(MPY_DIR)/lib/micropython-lib/micropython/utarfile", "utarfile.py")

tulip/linux/variants/manifest.py

@@ -1,5 +1,8 @@
 include("$(MPY_DIR)/extmod/asyncio")
 freeze("$(MPY_DIR)/../tulip/shared/py")
+# AMYboard's python module, so Tulip Desktop can run AMYboard World sketches
+# (world.amyboard.download). CV helpers and I2C accessories no-op on desktop.
+freeze("$(MPY_DIR)/../tulip/shared/amyboard-py", "amyboard.py")
 package("amy", base_path="$(MPY_DIR)/../amy")
 
 require("bundle-networking")

tulip/macos/variants/manifest.py

@@ -1,6 +1,9 @@
 
 include("$(MPY_DIR)/extmod/asyncio")
 freeze("$(MPY_DIR)/../tulip/shared/py")
+# AMYboard's python module, so Tulip Desktop can run AMYboard World sketches
+# (world.amyboard.download). CV helpers and I2C accessories no-op on desktop.
+freeze("$(MPY_DIR)/../tulip/shared/amyboard-py", "amyboard.py")
 package("amy", base_path="$(MPY_DIR)/../amy")
 require("bundle-networking")
 

tulip/shared/amyboard-py/amyboard.py

@@ -12,6 +12,12 @@
 def web():
     return (tulip.board()=="AMYBOARD_WEB")
 
+def cv_capable():
+    """True on boards with AMYboard CV hardware. This module is also frozen
+    into Tulip builds (so AMYboard World sketches run there via
+    world.amyboard.download()); on Tulip the CV helpers below just no-op."""
+    return tulip.board() in ("AMYBOARD", "AMYBOARD_WEB")
+
 
 class _BGWriteI2C:
     """i2c-shaped adapter that enqueues writes on the firmware's background
@@ -671,6 +677,16 @@ def report_version(*_args):
 
 def run_sketch():
     """Apply knobs from sketch.py, then import it (top-level code runs), start loop()."""
+    global display
+    if display is None:
+        # AMYboard boots init the display in _boot.py; on Tulip we only get
+        # here via world.amyboard.download(), so probe the I2C OLED now. If
+        # none is attached, amyboard.display is a no-op Display, so sketches
+        # that draw still run.
+        try:
+            init_display()
+        except Exception:
+            pass
     _env_dir = _ensure_current_env_layout()
     from upysh import cd
     tulip.stderr_write("cding to %s" % (_env_dir))
@@ -809,8 +825,14 @@ def restart_sketch():
 def get_i2c():
     global i2c
     if(i2c is None):
-        from machine import I2C
-        i2c = I2C(0, freq=400000)
+        try:
+            from machine import I2C
+            i2c = I2C(0, freq=400000)
+        except Exception as e:
+            # Ports without machine.I2C (Tulip Desktop, web): surface this as
+            # OSError so every accessory helper's missing-hardware path treats
+            # it like an absent device instead of crashing the sketch.
+            raise OSError("I2C unavailable: %s" % e)
     return i2c
 
 def ssd1327_oled():
@@ -937,7 +959,11 @@ def set_cv_out(channel=0, synth=1):
     the CV waveform shape, frequency, etc.
 
     Call set_cv_out(channel, synth=0) to clear the mapping.
+
+    No-op on boards without CV hardware (Tulip).
     """
+    if not cv_capable():
+        return
     tulip.set_cv_synth(synth, channel + 1 if synth > 0 else 0)
 
 def edit(filename=None):
@@ -949,7 +975,11 @@ def edit(filename=None):
         pye()
 
 def cv_out(volts, channel=0):
-    """Output -10.0v to +10.0v (nominal) on CV1 (channel=0) or 2 (channel=1)"""
+    """Output -10.0v to +10.0v (nominal) on CV1 (channel=0) or 2 (channel=1).
+
+    No-op on boards without CV hardware (Tulip)."""
+    if not cv_capable():
+        return
     addr = 88 # GP8413
     # With rev1 scaling, 0x0000 -> -10v, 0x7fff -> +10v
     val = int(((volts + 10)/20.0) * 0x8000)
@@ -965,6 +995,9 @@ def cv_out(volts, channel=0):
     get_i2c().writeto_mem(addr, ch, bytes([b0,b1]))
 
 def cv_in(channel=0):
+    # Boards without CV hardware (Tulip) read a constant 0.
+    if not cv_capable():
+        return 0.0
     return tulip.cv_in(channel)
 
 # --- Web encoder emulation helpers (called from JS) ---

tulip/shared/py/world.py

@@ -225,3 +225,75 @@ def post_message(message):
         _post_json("/api/tulipworld/messages", {"username": u, "content": message[:MAX_MESSAGE_SIZE]})
     except Exception:
         print("Could not post message.")
+
+
+# A M Y B O A R D ~ W O R L D
+# Sketches shared on amyboard.com. world.amyboard.download("eno_ambient", "dpwe")
+# fetches the latest sketch.py by that name (username optional) into
+# user/current/sketch.py and starts it the AMYboard way: synths reset,
+# _auto_generated_knobs applied, loop() scheduled on the sequencer.
+# Works on AMYboard and on Tulip — on Tulip the CV in/out calls in a sketch
+# no-op, while I2C accessories (OLED display, rotary encoders) still work.
+
+def _amyboard_sketch_filename(sketch):
+    return sketch if sketch.endswith(".py") else sketch + ".py"
+
+
+class _AmyboardWorld:
+    def ls(self, count=10):
+        for f in _get_json("/api/amyboardworld/files", limit=count)["items"]:
+            name = f["filename"]
+            if name.endswith(".py"):
+                name = name[:-3]
+            print(
+                "% 20s % 10s % 8s  %s"
+                % (
+                    name,
+                    f["username"][:MAX_USERNAME_SIZE],
+                    nice_time(f["age_ms"]),
+                    f["description"][:MAX_DESCRIPTION_SIZE],
+                )
+            )
+
+    def download(self, sketch, username=None, start=True):
+        filename = _amyboard_sketch_filename(sketch)
+        # Resolve via the files listing (q= narrows server-side, then exact
+        # filename match here): items come back newest-first, so the first
+        # hit is the latest revision.
+        got = None
+        try:
+            if username is None:
+                items = _get_json("/api/amyboardworld/files", q=filename, limit=50, latest_per_user_env="false")["items"]
+            else:
+                items = _get_json("/api/amyboardworld/files", q=filename, username=username, limit=50, latest_per_user_env="false")["items"]
+            for f in items:
+                if f["filename"].lower() == filename.lower():
+                    got = f
+                    break
+        except Exception:
+            got = None
+
+        if got is None:
+            if username is None:
+                print("Could not find %s on AMYboard World" % (filename))
+            else:
+                print("Could not find %s by %s on AMYboard World" % (filename, username))
+            return
+
+        import amyboard as _amyboard
+        env_dir = _amyboard.ensure_user_environment()
+        url = got["download_url"]
+        if not url.startswith("http"):
+            url = WORLD_API_BASE + url
+        r = requests.get(url)
+        r.save(env_dir + "/sketch.py")
+        print(
+            "Downloaded sketch %s by %s [%d bytes, last updated %s] from AMYboard World."
+            % (filename[:-3], got["username"], got["size"], nice_time(got["age_ms"]).lstrip())
+        )
+        if start:
+            print("Starting sketch. Stop it with amyboard.stop_sketch()")
+            _amyboard.restart_sketch()
+
+
+amyboard = _AmyboardWorld()

tulip/shared/py/world_web.py

@@ -187,3 +187,83 @@ def clean_up(x):
             os.remove(filename)
 
     world_upload_file(pwd() + "/", filename, username, description).then(lambda x: clean_up(x))
+
+
+# A M Y B O A R D ~ W O R L D
+# Async version of world.amyboard for the web ports. See world.py for details:
+# world.amyboard.download("eno_ambient", "dpwe") fetches the latest sketch.py
+# into user/current/sketch.py and starts it via amyboard.restart_sketch().
+
+class _AmyboardWorldWeb:
+    def ls(self, count=10):
+        def do_next(payload):
+            for f in payload.get("items", []):
+                name = f["filename"]
+                if name.endswith(".py"):
+                    name = name[:-3]
+                print(
+                    "% 20s % 10s % 8s  %s"
+                    % (
+                        name,
+                        f["username"][:MAX_USERNAME_SIZE],
+                        nice_time(f["age_ms"]),
+                        f["description"][:MAX_DESCRIPTION_SIZE],
+                    )
+                )
+
+        return js.fetch(
+            world_api_url("/api/amyboardworld/files?limit=%d" % (count))
+        ).then(lambda r: r.text()).then(lambda x: json.loads(x)).then(do_next)
+
+    def download(self, sketch, username=None, start=True):
+        filename = sketch if sketch.endswith(".py") else sketch + ".py"
+        # Resolve via the files listing (q= narrows server-side, then exact
+        # filename match below): items come back newest-first, so the first
+        # hit is the latest revision.
+        query = "/api/amyboardworld/files?limit=50&latest_per_user_env=false&q=%s" % (js.encodeURIComponent(filename))
+        if username is not None:
+            query = query + "&username=%s" % (js.encodeURIComponent(username))
+
+        def on_missing(_=None):
+            if username is None:
+                print("Could not find %s on AMYboard World" % (filename))
+            else:
+                print("Could not find %s by %s on AMYboard World" % (filename, username))
+
+        def on_got(got):
+            def save_finished(x):
+                import amyboard as _amyboard
+                env_dir = _amyboard.ensure_user_environment()
+                f = open(env_dir + "/sketch.py", "wb")
+                f.write(bytes(x))
+                f.close()
+                print(
+                    "Downloaded sketch %s by %s [%d bytes, last updated %s] from AMYboard World."
+                    % (filename[:-3], got["username"], got["size"], nice_time(got["age_ms"]).lstrip())
+                )
+                if start:
+                    print("Starting sketch. Stop it with amyboard.stop_sketch()")
+                    _amyboard.restart_sketch()
+
+            grab_url = got["download_url"]
+            if not str(grab_url).startswith("http"):
+                grab_url = world_api_url(grab_url)
+            return grab("urlget", url=grab_url).then(lambda x: save_finished(x))
+
+        def on_items(payload):
+            for f in payload.get("items", []):
+                if f["filename"].lower() == filename.lower():
+                    return on_got(f)
+            on_missing()
+            return js.Promise.resolve(None)
+
+        def on_resp(resp):
+            if not resp.ok:
+                on_missing()
+                return js.Promise.resolve(None)
+            return resp.text().then(lambda x: on_items(json.loads(x)))
+
+        return js.fetch(world_api_url(query)).then(lambda resp: on_resp(resp))
+
+
+amyboard = _AmyboardWorldWeb()

tulip/web/variants/manifest.py

@@ -3,6 +3,9 @@
 # runtime (with setTimeout an Promise's) to contrtol the scheduling.
 
 freeze("../../shared/py")
+# AMYboard's python module, so Tulip Web can run AMYboard World sketches
+# (world.amyboard.download). CV helpers and I2C accessories no-op on web.
+freeze("../../shared/amyboard-py", "amyboard.py")
 package("amy", base_path="$(MPY_DIR)/../amy")