From aa83f5c957f3754b8bf9d8fad81edadcec628c3f Mon Sep 17 00:00:00 2001
From: "Joseph T. Foley" <foley@ru.is>
Date: Thu, 2 Jul 2026 16:56:44 +0000
Subject: [PATCH] got an LED to blink on GPIO18

---
 lgpio/blink.py    | 19 +++++++++++++++++++
 lgpio/pwm-test.py | 25 +++++++++++++++++++++++++
 2 files changed, 44 insertions(+)
 create mode 100755 lgpio/blink.py
 create mode 100755 lgpio/pwm-test.py

diff --git a/lgpio/blink.py b/lgpio/blink.py
new file mode 100755
index 0000000..7c6b782
--- /dev/null
+++ b/lgpio/blink.py
@@ -0,0 +1,19 @@
+#!/usr/bin/python
+# From https://raspberry.tips/en/raspberrypi-tutorials/raspberry-pi-gpio-python
+import lgpio
+import time
+
+# Open GPIO chip (0 = /dev/gpiochip0, on Pi 5 gpiochip4 also possible)
+h = lgpio.gpiochip_open(0)
+
+try:
+    lgpio.gpio_claim_output(h, 18)   # GPIO18 (pin 12) as output (MOTA1)
+
+    for _ in range(5):
+        lgpio.gpio_write(h, 18, 1)   # HIGH
+        time.sleep(0.5)
+        lgpio.gpio_write(h, 18, 0)   # LOW
+        time.sleep(0.5)
+    
+finally:
+    lgpio.gpiochip_close(h)          # Always close!
diff --git a/lgpio/pwm-test.py b/lgpio/pwm-test.py
new file mode 100755
index 0000000..e44f005
--- /dev/null
+++ b/lgpio/pwm-test.py
@@ -0,0 +1,25 @@
+#!/usr/bin/python
+# From https://raspberry.tips/en/raspberrypi-tutorials/raspberry-pi-gpio-python
+import lgpio
+import time
+
+# Open GPIO chip (0 = /dev/gpiochip0, on Pi 5 gpiochip4 also possible)
+h = lgpio.gpiochip_open(0)
+
+try:
+    lgpio.gpio_claim_output(h, 16)   # GPIO16 as output (MOTA2)
+    lgpio.gpio_write(h, 16, 0)   # LOW
+
+    # Hardware PWM on GPIO18 (pin 12) must be PWM-capable
+    # Frequency: 1000 Hz, duty cycle: 50%
+    lgpio.tx_pwm(h, 18, 1000, 50)
+    time.sleep(2)
+
+    # Reduce duty cycle to 20%
+    lgpio.tx_pwm(h, 18, 1000, 20)
+    time.sleep(2)
+
+    lgpio.tx_pwm(h, 18, 0, 0)   # Stop PWM
+    
+finally:
+    lgpio.gpiochip_close(h)          # Always close!