Latest Jumbospot Mini Simplex MMDVM HS HAT Hotspot Module for NanoPi NEO Pi Star

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Latest Jumbospot Mini Simplex MMDVM HS HAT Hotspot Module for NanoPi NEO Pi Star
Tip : The Item only the Mini MMDVM board  Not include NanoPi NEO
SMA Female Jack 1.6mm
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


Radio/Modem Type:STM32-DVM(GPIO)


to support i2c communication change MMDVM_HS code(by Andy Uribe CA6JAU)->Config.h

// Host communication selection:

//#define STM32_USART1_HOST

//#define STM32_USB_HOST

#define STM32_I2C_HOST

to disable i2c 2 to raspi and oled just remove R20,R21  

update new FW: (pi-star / expert / ssh access / user :pi-star pass:raspberry)

sudo pistar-mmdvmhshatflash hs_hat

ps:update new FW no oled pwr on message.

- High performance 32-bit ARM processor
- Fully assembled and tested
- Supports DMR,P-25,D-Star and System Fusion
- Onboard LEDs to show status (Tx,Rx,PTT,Mode)
- Up to 10mW RF power
- SMA antenna connector,UHF antenna included
- Mounts cleanly on all current Raspberry Pi's including the Pi Zero
- The firmware is pre-loaded and is easily upgraded via software. Please do not upgrade the firmware by yourself,if you have not the knowledge for it.
- Open source 3D printable case available
- Support and tested with PI-STAR
- UHF 420-450MHz,433MHZ and 900MHz
  VHF 144 220 Opera FREQ
UHF 420-450MHz ,
VHF 144-146MHZ

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