What electronic components are needed to control the buoys?

We have designed a second controller to pilot the buoys, to replace, if desired, the existing joystick.

We designed this new controller to overcome 3 limitations of the existing joystick:

1. Improve the controller's battery life by increasing it from 2*300 mAh to 1500 mAh

2. Improve screen readability with a much larger screen

3. Immediate access to a buoy, without cycling between the 8 possible buoys

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Controller

M5Stack Components

	Core2 ESP32 IoT Development Kit V1.3	$42.90
	Extension Port Module for Core2	$6.95
	Battery Module 13.2 (1500mAh)	$10.50
	LoRa Unit 433MHz with Antenna (E220)	$13
	Mini Dual Button Unit	$2.95
	Two modules: I2C Joystick Unit V1.1 (MEGA8A)	$26
	Byte Button Unit with 8x Buttons (STM32G031)	$7.50
	Brass insert M2 D3 L3 , M3 D4 L4 RX-1/4"-20x12.7
	Total Controller	$110