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Jumbospot Version 1.7 MMDVM Simplex Hotspot UHF VHF Antenna +OLED+Case Support P25 DMR YSF for Raspberry Pi Hotspot
new pi4b need remove R1 Resistor.
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
Default Username: pi-star
Default Password: raspberry
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.
Best version on ebay :
1.Latest version and the firmware is latest
2. original cystal : Original ECS-TXO-3225-147.4-TR from USA
3. With white on-board antenna
Features:
PLS note: the RXofffset is : -475(minus 475)
Note: The product not include the raspberry pi.
MMDVM hotspot for raspberry pi
Can work with UHF or VHF
Parameter:
– 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
– UHF430-450MHz,433MHZ and 900MHz
VHF 144 220 Opera FREQ
Package List:
– 1 x Black shell + antenna + OLED (not include the raspberry pi)
We will send you the MDVM hotspot module (new version is can work with UHF or VHF)
Jumbospot Version 1.7 MMDVM Simplex Hotspot UHF VHF Antenna +OLED+Case Support P25 DMR YSF for Raspberry Pi Hotspot
new pi4b need remove R1 Resistor.
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
Default Username: pi-star
Default Password: raspberry
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.
Best version on ebay :
Note: The product not include the raspberry pi.
MMDVM hotspot for raspberry pi
Can work with UHF or VHF
Parameter:
– 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
– UHF430-450MHz,433MHZ and 900MHz
VHF 144 220 Opera FREQ
Package List:
– 1 x Black shell + antenna + OLED (not include the raspberry pi)
We will send you the MDVM hotspot module (new version is can work with UHF or VHF)
