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Commit c41b2d

2026-02-12 19:30:14 Peter van Dijk: pymc_core diff for fake zebra hat on rock pi 4
devices/nebra/indoor rock pi.md ..
@@ 14,3 14,70 @@
* RST (raspi GPIO17, raspi physical pin 11, rockpi pin 4 18)
* BUSY (raspi GPIO27, raspi physical pin 13, rockpi pin 4 22)
* IRQ (raspi GPIO22, raspi physical pin 15, rockpi pin 4 21)
+
+ pymc_core patch to go with this:
+
+ ```diff
+ diff --git a/examples/common.py b/examples/common.py
+ index 826b542..0a6436c 100644
+ --- a/examples/common.py
+ +++ b/examples/common.py
+ @@ -121,6 +121,22 @@ def create_radio(radio_type: str = "waveshare", serial_port: str = "/dev/ttyUSB0
+ "coding_rate": 5,
+ "preamble_length": 17,
+ },
+ + "zebra": {
+ + "bus_id": 0,
+ + "cs_id": 0,
+ + "cs_pin": 28,
+ + "reset_pin": 18,
+ + "busy_pin": 22,
+ + "irq_pin": 21,
+ + "txen_pin": -1,
+ + "frequency": int(869.618 * 1000000), # EU: 869.525 MHz,
+ + "tx_power": 22,
+ + "spreading_factor": 8,
+ + "bandwidth": int(62.5 * 1000),
+ + "coding_rate": 8,
+ + "preamble_length": 17,
+ + "use_dio3_tcxo": True
+ + },
+ }
+
+ if radio_type not in configs:
+ diff --git a/examples/discover_nodes.py b/examples/discover_nodes.py
+ index 097be79..9a62b5b 100644
+ --- a/examples/discover_nodes.py
+ +++ b/examples/discover_nodes.py
+ @@ -149,7 +149,7 @@ def main():
+ parser = argparse.ArgumentParser(description="Discover nearby mesh nodes")
+ parser.add_argument(
+ "--radio-type",
+ - choices=["waveshare", "uconsole", "meshadv-mini", "kiss-tnc"],
+ + choices=["waveshare", "uconsole", "meshadv-mini", "kiss-tnc", "zebra"],
+ default="waveshare",
+ help="Radio hardware type (default: waveshare)",
+ )
+ diff --git a/src/pymc_core/hardware/gpio_manager.py b/src/pymc_core/hardware/gpio_manager.py
+ index 399a5da..7d1e003 100644
+ --- a/src/pymc_core/hardware/gpio_manager.py
+ +++ b/src/pymc_core/hardware/gpio_manager.py
+ @@ -44,7 +44,7 @@ logger = logging.getLogger("GPIOPinManager")
+ class GPIOPinManager:
+ """Manages GPIO pins abstraction using Linux GPIO character device interface"""
+
+ - def __init__(self, gpio_chip: str = "/dev/gpiochip0"):
+ + def __init__(self, gpio_chip: str = "/dev/gpiochip4"):
+ """
+ Initialize GPIO Pin Manager
+
+ @@ -77,7 +77,7 @@ class GPIOPinManager:
+ return chips[0]
+ else:
+ logger.warning("No GPIO chips found, defaulting to /dev/gpiochip0")
+ - return "/dev/gpiochip0"
+ + return "/dev/gpiochip4"
+ return gpio_chip
+
+ def setup_output_pin(self, pin_number: int, initial_value: bool = False) -> bool:
+ ```
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