diff --git a/micropython/examples/pico_lipo_shim/battery_pico.py b/micropython/examples/pico_lipo_shim/battery_pico.py
index ad2e1ed8b..096f3c5f5 100644
--- a/micropython/examples/pico_lipo_shim/battery_pico.py
+++ b/micropython/examples/pico_lipo_shim/battery_pico.py
@@ -12,7 +12,7 @@
 
 display.set_backlight(0.8)
 
-vsys = ADC(29)                      # reads the system input voltage
+vsys = ADC(Pin(29))                 # reads the system input voltage
 charging = Pin(24, Pin.IN)          # reading GP24 tells us whether or not USB power is connected
 conversion_factor = 3 * 3.3 / 65535
 
diff --git a/micropython/examples/pimoroni_pico_lipo/battery_pico_display.py b/micropython/examples/pimoroni_pico_lipo/battery_pico_display.py
index 373e314af..c3501f229 100644
--- a/micropython/examples/pimoroni_pico_lipo/battery_pico_display.py
+++ b/micropython/examples/pimoroni_pico_lipo/battery_pico_display.py
@@ -13,7 +13,7 @@
 
 display.set_backlight(0.8)
 
-vsys = ADC(29)                      # reads the system input voltage
+vsys = ADC(Pin(29))                 # reads the system input voltage
 charging = Pin(24, Pin.IN)          # reading GP24 tells us whether or not USB power is connected
 conversion_factor = 3 * 3.3 / 65535
 
diff --git a/micropython/examples/pimoroni_pico_lipo/battery_pico_explorer.py b/micropython/examples/pimoroni_pico_lipo/battery_pico_explorer.py
index 5630141d0..ab030d0fd 100644
--- a/micropython/examples/pimoroni_pico_lipo/battery_pico_explorer.py
+++ b/micropython/examples/pimoroni_pico_lipo/battery_pico_explorer.py
@@ -13,7 +13,7 @@
 
 buzzer = Buzzer(0)
 
-vsys = ADC(29)                      # reads the system input voltage
+vsys = ADC(Pin(29))                 # reads the system input voltage
 charging = Pin(24, Pin.IN)          # reading GP24 tells us whether or not USB power is connected
 conversion_factor = 3 * 3.3 / 65535
 
diff --git a/micropython/examples/tufty2040/autobright.py b/micropython/examples/tufty2040/autobright.py
index 0f035b160..1cc819ca4 100644
--- a/micropython/examples/tufty2040/autobright.py
+++ b/micropython/examples/tufty2040/autobright.py
@@ -32,9 +32,9 @@
 button_b = Button(8, invert=False)
 # Pins and analogue-digital converters we need to set up to measure sensors.
 lux_vref_pwr = Pin(27, Pin.OUT)
-lux = ADC(26)
-vbat_adc = ADC(29)
-vref_adc = ADC(28)
+lux = ADC(Pin(26))
+vbat_adc = ADC(Pin(29))
+vref_adc = ADC(Pin(28))
 usb_power = Pin(24, Pin.IN)
 
 display = PicoGraphics(display=DISPLAY_TUFTY_2040)
diff --git a/micropython/examples/tufty2040/battery.py b/micropython/examples/tufty2040/battery.py
index c881c2625..03c85d77e 100644
--- a/micropython/examples/tufty2040/battery.py
+++ b/micropython/examples/tufty2040/battery.py
@@ -10,8 +10,8 @@
 display.set_backlight(0.8)
 
 # set up the ADCs for measuring battery voltage
-vbat_adc = ADC(29)
-vref_adc = ADC(28)
+vbat_adc = ADC(Pin(29))
+vref_adc = ADC(Pin(28))
 vref_en = Pin(27)
 vref_en.init(Pin.OUT)
 vref_en.value(0)