2-Channel 1.2A Motor Driver Shield for Arduino [Discontinued] _MAKE_LED_STANDARD It comes with the Optiboot

It comes with the Optiboot bootloader already installed

Full Scale Output of DAC is 2

It is specifically designed for people who want to program Atmega328P's to turn them into Arduino bootloader chips using an AVR-ISP sketch

Diving pump power supply: 4

2-Channel 1.2A Motor Driver Shield for Arduino [Discontinued] _MAKE_LED_STANDARD It comes with the OptibootThe Cytron Motor Driver shield can power 2 motors from your Arduino Uno, offering 3A of peak current and 1. 2A of continuous current at each channel. It is compatible with the official Arduino UNO, Mega and Leonardo, and Arduino compatible boards such as the Maker UNO. The shield uses a DRV8871 controller and support for both signed magnitude and locked anti phase. This driver can handle high currents up to 3A together with auto current limit