UHF&VHF Antenna MMDVM Hotspot Support P25 DMR YSF for Raspberry pi

STM32 MMDVM HS HAT Guidenew pi4b need remove R1 Resistor STM32 MMDVM HS HAT Rev1 7 Guide1 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 NodeRadio 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 0Quick start 1 download image https www pistar uk downloads write it to card 2 insert card to rpi 3 wait to boot 5 minutes connect wifi Pi star setup pass raspberry 4 open http pi star admin 5 set freq dmr id dmr mode add home s wifi ssid Default Username pi starDefault Password raspberryto 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 HOSTto disable i2c 2 to raspi and oled just remove R20 R21update new FW pi star expert ssh access user pi star pass raspberry sudo pistar mmdvmhshatflash hs hatps update new FW no oled pwr on message modeinfo pls visitwww mmdvm club