BTS7960 43A H-Bridge High-Power Stepper Motor Driver Module
CH340G USB To TTL(Serial) Converter For Arduino Nano Raspberry Pi
Built-in USB to TTL Transfer chip.
Designed to be used for USB to TTL electronic projects.
TTL interface output, easy to connect to your MCU.
Dual 3.3V and 5V Power output, work with 3.3v and 5 V target device.
The mini-module is designed specifically for STC download and ARDUINO PRO supports all series of STC
Supports WIN7/VISTA/MAC/LINUX(32 bit /64-bit system)
CN3791 9V MPPT Solar Charger Module
CN3791 MPPT Solar Panel Regulator Module
Operating Voltage: 9V
Output voltage: nominal 3.7V full charge voltage 4.2V lithium battery
Interface: 2-pin JST connectors (or PH2.0)
Max Charging current: 2A
PWM switching frequency: 300KHz
Charging voltage: 4.2V ± 1%
Working environment temperature: -40 ° C to +85 ° C