Description
Description:
This item has 7 chooses
Choose 1 - MMDVM case : Simplex MMDVM board + Aluminum case
Choose 2 - with Oled : Simplex MMDVM board with oled display
Choose 3 - MMDVM : Simplex MMDVM board
Choose 4 - MMDVM OLED CASE : Simplex MMDVM board with oled display + Aluminum case
Choose 5 - MMDVM with pi 8g : 1.7version simplex MMDVM board + raspberry pi + 2g tf system card + case
Choose 6 - USB Duplex MMDVM : Duplex MMDVM board
Choose 7 - USB Duplex with OLED : Duplex MMDVM board with oled display
New version MMDVM hotspot Support P25 DMR YSF for raspberry pi
new pi4b need remove R1 Resistor.
product description:
STM32_MMDVM_HS HAT Rev1.7 Guide
1.Hardware add (SDA,SCL)R20,R21 Connect stm32 i2c 2 bus to OLED,and raspi. oled message pwr on without RPI using mmdvm_hs custom fw,and i2c 2 bus.
2.Support i2c communition with raspi
Setting For Pi-star software and raspberry hardware (rpi 0-3) new pi4b need remove R1 Resistor.
Controller Mode:Simplex Node
Radio Frequency : Freq:144-148,219-225,(Main Band)420-475,842-950
Example:438.000000
Radio/Modem Type:STM32-DVM(GPIO)
14.7456 TCXO with RXOFFSET=0 TXOFFSET=0
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