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Multichannel RS232 to TTL Converter
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PCB
- Converts RS232 levels to TTL for VFD/LCD
- On board power supply and regulator for display and level shifting circuits.
- Can be configured for VFD or LCD type display
- Small size, 1.6 by 3.9 inch ( 40 by 100mm)
- Buffers TTL levels back to RS232 for transmitting to next VFD/LCD daisy chained display
- RS232 / SPI Data signal indicator
- RS232 / SPI Clock signal indicator
- RS232 / SPI Reset/CS signal indicator
- RS232 / SPI Busy signal indicator
- TTL / SPI Busy Signal Indicator
- Jumper to terminate “Busy”
- 4 layer design with internal busses and ground shields
- SMD construction
- I/O points on standard .1 inch pitch
- Mounting pads for flexible mounting options
- Power can be fed through daisy chain network cabling
- EMI/RF filtering
- Power On indicator
VFD Interface Features
Same mounting holes as Noritake GU128X32D; Directly piggybacks to this unit.
Includes Signals:
- Busy
- Reset
- Clock
- Data
- +V
- Gnd
LCD Interface Features:
Has same mounting holes as Crystalfontz CFAG14432E series displays, can directly piggybacks to this unit.
Includes SPI and Power Signals:
- CS (Chip Select, same line as VFD reset)
- Clock
- Data
- +V
- Gnd
Includes Additional Signals:
- +V Out for contrast adjust (From LCD)
- +V in for contrast adjust (Too LCD)
- Jack for external contrast potentiometer connection
- Jack for connection of backlight LED
- On board backlight LED current limiter resister
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