diff --git a/test/board.h b/test/board.h
index d2f132f..cc7e23f 100644
--- a/test/board.h
+++ b/test/board.h
@@ -201,8 +201,10 @@ class Board
 
     // PWM
     virtual void pwm_init(uint32_t refresh_rate, uint16_t idle_pwm) = 0;
+    virtual void pwm_init_multi(const float *rate, uint32_t channels) = 0;
     virtual void pwm_disable() = 0;
     virtual void pwm_write(uint8_t channel, float value) = 0;
+    virtual void pwm_write_multi(float *value, uint32_t channels) = 0;
 
     // non-volatile memory
     virtual void memory_init() = 0;