diff --git a/crawler_software/arduino/crawler_slave/Makefile b/crawler_software/arduino/crawler_slave/Makefile
index d35a83e..2d437b3 100644
--- a/crawler_software/arduino/crawler_slave/Makefile
+++ b/crawler_software/arduino/crawler_slave/Makefile
@@ -5,7 +5,7 @@
 
 # What board to build for and its core
 CORE     ?= arduino:avr
-FQBN     ?= arduino:avr:nano
+FQBN     ?= arduino:avr:nano:cpu=atmega328old
 
 # What port to build on
 ifndef SERIAL_DEV
@@ -20,13 +20,13 @@ endif
 
 all: requirements build upload
 
-build: crawler_slave.ino
+build: requirements crawler_slave.ino
 	arduino-cli core install $(CORE)
 
 	arduino-cli compile -b $(FQBN) crawler_slave
 
-upload:
-	echo "Would install to $(SERIAL_DEV)"
+upload: requirements crawler_slave.ino
+	arduino-cli upload -b $(FQBN) crawler_slave -p $(SERIAL_DEV)
 
 requirements:
 	@if [ -e requirements.txt ]; \