fix gpio off-by-one in dmx loop

OpenLightingProject · Nov 19, 2019 · 6ceabbd · 6ceabbd
1 parent 95cb61c
commit 6ceabbd
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/plugins/gpio/GPIODriver.cpp b/plugins/gpio/GPIODriver.cpp
@@ -168,7 +168,7 @@ bool GPIODriver::UpdateGPIOPins(const DmxBuffer &dmx) {
   };
 
   for (uint16_t i = 0;
-       i < m_gpio_pins.size() && (i + m_options.start_address < dmx.Size());
+       i < m_gpio_pins.size() && (i + m_options.start_address - 1u < dmx.Size());
        i++) {
     Action action = NO_CHANGE;
     uint8_t slot_value = dmx.Get(i + m_options.start_address - 1);