diff --git a/libraries/AP_HAL_ChibiOS/hwdef/fmuv5/hwdef.dat b/libraries/AP_HAL_ChibiOS/hwdef/fmuv5/hwdef.dat
index fb0c96a687..e2ff94d682 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/fmuv5/hwdef.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/fmuv5/hwdef.dat
@@ -180,10 +180,18 @@ PB0 RSSI_IN ADC1 SCALE(1)
 PC0 VDD_5V_SENS ADC1 SCALE(2)
 PC1 SCALED_V3V3 ADC1 SCALE(2)
 
+# setup scaling defaults for PixHackV5 power brick
+define HAL_BATT_VOLT_SCALE 18.0
+define HAL_BATT_CURR_SCALE 24.0
 define HAL_BATT_VOLT_PIN 0
 define HAL_BATT_CURR_PIN 1
-define HAL_BATT_VOLT_SCALE 10.1
-define HAL_BATT_CURR_SCALE 17.0
+
+# CAN bus
+PI9  CAN1_RX CAN1
+PH13 CAN1_TX CAN1
+
+PB12 CAN2_RX CAN2
+PB13 CAN2_TX CAN2
 
 # GPIOs
 PA7 HEATER_EN OUTPUT LOW GPIO(80)