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-rw-r--r--drivers/display/ssd1306.py1
-rw-r--r--drivers/nrf24l01/nrf24l01.py1
-rw-r--r--drivers/sdcard/sdcard.py1
3 files changed, 3 insertions, 0 deletions
diff --git a/drivers/display/ssd1306.py b/drivers/display/ssd1306.py
index 34dca769e9..ad57725e74 100644
--- a/drivers/display/ssd1306.py
+++ b/drivers/display/ssd1306.py
@@ -1,5 +1,6 @@
# MicroPython SSD1306 OLED driver, I2C and SPI interfaces
+from micropython import const
import time
import framebuf
diff --git a/drivers/nrf24l01/nrf24l01.py b/drivers/nrf24l01/nrf24l01.py
index a244b0b25d..3c79650bf0 100644
--- a/drivers/nrf24l01/nrf24l01.py
+++ b/drivers/nrf24l01/nrf24l01.py
@@ -1,6 +1,7 @@
"""NRF24L01 driver for Micro Python
"""
+from micropython import const
import pyb
# nRF24L01+ registers
diff --git a/drivers/sdcard/sdcard.py b/drivers/sdcard/sdcard.py
index fc7a8af7c5..191630aebd 100644
--- a/drivers/sdcard/sdcard.py
+++ b/drivers/sdcard/sdcard.py
@@ -21,6 +21,7 @@ Example usage on ESP8266:
"""
+from micropython import const
import time