Nextion Foca Max 5V2A Output USB To TTL Serial Converter Board
Foca Max is a USB to TTL serial converter board. With a 8-26V DC external power input, Foca Max brings a stable power source and convenience of USB to TTL communication for all series and sizes of Nextion HMI display
Foca Max is a USB to TTL serial converter board with maximum 5.5V2A output. For USB to TTL conversion, the Foca Max can be power supplied by USB only or USB together with external DC 8-26V, The USB and external DC power supplies are isolated by using a diode (SS34) to avoid the current backflowed between them.
Note: as for the Nextion HMI display size less than 4.3'', you can only use the USB for power supply, size large than 4.3'', a external DC 8-26V for power supply is recommended.
- SILABS CP2102 chip, maximum baud rate of 2Mbps
High-power and energy-efficient DC-DC converter chip TPS54331 with 8-26V wide voltage input and 5V2A output
Solid capacitors, high Q inductors components
LED indicators for input/output power and TX/RX communication
Small voltage ripple within 100mA
Plug and Use, no firmware programming required
Model name: Foca Max
USB Voltage input: 5-5.5V
USB type: USB 2.0
DC Input: DC 8-26V
DC Power Socket: DC-005 (5.5*2.1mm)
Voltage output: 5-5.5V
Current output: 2A（maximum）
Voltage ripple: <100mV
Working temperature: -20°C ~ 70°C
PCB size: 50mm*50mm*1.6mm
Max baud rate: 2Mbps
TTL level: 3.3V
|Dimensions||50 × 50 × 12 mm|
|USB Voltage input||
|DC Power Socket||
-20°C ~ 70°C
|Max baud rate||
Allows download to HMI with speed of around 1mbit / s.
As power supply it is quite efficient, it doesn't get hot even after long use.
Only bad thing is USB A connector which is normally on host not on device, so you need special cable (included) with 2 USB A connectors. Luckily included cable is long enough for me.
Why don't you use USB B or USB mini or USB micro or USB C (it will be much easier to get replacement cable in case if you need longer one or if you damage included cable).
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