Foca Max USB TTL converter for Nextion displays
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Foca Max USB to TTL converter, designed for use with Nextion displays.
With an external 8-26V DC power input, the Foca Max provides a stable power source and the convenience of USB to TTL communication for all Nextion HMI display series and sizes.
The Foca Max is a serial USB to TTL converter with a maximum output of 5.5V 2A. For USB to TTL conversion, Foca Max can be powered by USB only or USB together with external DC voltage 8-26V, USB and external DC power supplies are isolated by a diode (SS34) to avoid current flow between them.
Note: for Nextion HMI display size smaller than 4.3 '', you can use USB only for power supply, size larger than 4.3 '', external DC voltage 8-26V for power supply is recommended.

Foca Max specifications:
- USB TTL converter: SILABS CP2102
- DCDC converter TPS54331 with a permissible input voltage of 8-26V and an output voltage of 5V@2A
- LED indicators for power and RX/TX communication status
- DC socket type: 5.5*2.1mm
- PCB dimensions: 50mm*50mm*1.6mm
- Baud rate: 2Mbps
- TTL level: 3.3V
- Connection cables included



