add option to flash leds of selected sheep

software/python-package/shepherd_sheep/cli.py

@@ -21,6 +21,7 @@
 from shepherd_core import CalibrationCape
 from shepherd_core.data_models.task import ProgrammingTask
 from shepherd_core.data_models.testbed import ProgrammerProtocol
+from shepherd_core.data_models.testbed import TargetPort
 from shepherd_core.inventory import Inventory
 from typing_extensions import Unpack
 
@@ -345,5 +346,27 @@ def pru(firmware: str) -> None:
     sysfs_interface.load_pru_firmware(firmware)
 
 
+@cli.command(
+    short_help="Helps to identify Observers by flashing LEDs near Targets (IO, EMU)",
+    context_settings={"ignore_unknown_options": True},
+)
+@click.argument("duration", type=click.INT, default=30)
+def blink(duration: int) -> None:
+    set_verbosity()
+    log.info("Blinks LEDs IO & EMU next to Target-Ports for %d s", duration)
+    with ShepherdDebug(use_io=False) as dbg:
+        dbg.set_power_state_emulator(True)
+        dbg.set_io_level_converter(True)
+        for _ in range(duration * 2):
+            dbg.select_port_for_io_interface(TargetPort.A)
+            time.sleep(0.125)
+            dbg.select_port_for_power_tracking(TargetPort.A)
+            time.sleep(0.125)
+            dbg.select_port_for_power_tracking(TargetPort.B)
+            time.sleep(0.125)
+            dbg.select_port_for_io_interface(TargetPort.B)
+            time.sleep(0.125)
+
+
 if __name__ == "__main__":
     cli()

software/shepherd-herd/shepherd_herd/herd_cli.py

@@ -157,6 +157,23 @@ def fix(ctx: click.Context) -> None:
     sys.exit(exit_code)
 
 
+@cli.command(
+    short_help="Helps to identify Observers by flashing LEDs near Targets (IO, EMU)",
+    context_settings={"ignore_unknown_options": True},
+)
+@click.argument("duration", type=click.INT, default=30)
+@click.pass_context
+def blink(ctx: click.Context, duration: int) -> None:
+    with ctx.obj["herd"] as herd:
+        replies = herd.run_cmd(
+            sudo=True,
+            cmd=f"shepherd-sheep blink {duration}",
+        )
+        herd.print_output(replies, verbose=False)
+        exit_code = max([reply.exited for reply in replies.values()])
+    sys.exit(exit_code)
+
+
 # #############################################################################
 #                               Task-Handling
 # #############################################################################