diff --git a/config.hpp b/config.hpp
index cdcb07c..c9761d7 100644
--- a/config.hpp
+++ b/config.hpp
@@ -1,5 +1,7 @@
 #pragma once
 
+#include "../io/io.hpp"
+
 namespace spi {
 
 enum class ClockDiv {
@@ -32,12 +34,13 @@ enum class BitOrder {
 };
 
 template <ClockDiv freq = ClockDiv::DIV_128, Mode mode = Mode::MODE_0, Side side = Side::MASTER,
-          BitOrder bitOrder = BitOrder::MSB_FIRST, bool pullup = false>
+          BitOrder bitOrder = BitOrder::MSB_FIRST, io::P ssPin = io::P::B2, bool pullup = false>
 struct Config {
 	static constexpr auto FREQ = freq;
 	static constexpr auto MODE = mode;
 	static constexpr auto SIDE = side;
 	static constexpr auto BIT_ORDER = bitOrder;
+	static constexpr auto SS_PIN = ssPin;
 	static constexpr auto PULLUP = pullup;
 };
 
diff --git a/hardware.hpp b/hardware.hpp
index 913569e..8ee6735 100644
--- a/hardware.hpp
+++ b/hardware.hpp
@@ -52,7 +52,7 @@ class Hardware {
 	static io::Pin<io::P::B5> sm_sck;
 	static io::Pin<io::P::B4> sm_miso;
 	static io::Pin<io::P::B3> sm_mosi;
-	static io::Pin<io::P::B2> sm_ss;
+	static io::Pin<Cfg::SS_PIN> sm_ss;
 
 	static void setClockDiv()
 	{