diff --git a/variants/node32s/pins_arduino.h b/variants/node32s/pins_arduino.h
new file mode 100644
index 0000000000000000000000000000000000000000..9a7ecd3ec36b26a32ff890de478c27ee98178f14
--- /dev/null
+++ b/variants/node32s/pins_arduino.h
@@ -0,0 +1,20 @@
+#ifndef Pins_Arduino_h
+#define Pins_Arduino_h
+
+#define EXTERNAL_NUM_INTERRUPTS 16
+#define NUM_DIGITAL_PINS        40
+#define NUM_ANALOG_INPUTS       18
+
+#define analogInputToDigitalPin(p)
+#define digitalPinToInterrupt(p)    (((p)<40)?(p):-1)
+#define digitalPinHasPWM(p)         (p < 34)
+
+static const uint8_t SDA = 21;
+static const uint8_t SCL = 22;
+
+static const uint8_t SS    = 5;
+static const uint8_t MOSI  = 23;
+static const uint8_t MISO  = 19;
+static const uint8_t SCK   = 18;
+
+#endif /* Pins_Arduino_h */