MMDVM_HS_Dual_Hat

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Not working in duplex GPIO

4

How can I use as dupkex with pi-star ? I selected MMDVM_HS_Dual_Hat (DB9MAT, DF2ET, & DO7EN) for Pi (GPIO) and not work, only when I use MMDVM_HS-MDO Hat (BG3MDO) for...

jjsainzc

Raspberry Pi CM4 Carrier Board plans?

1

Any plans to add the Hirose connectors to a RPi CM4 instead of the GPIO? An all in one board with a 18560 battery would be nice!!

ceilingduster

The STM32F103C8T6's rom size is not enough for USB

8

Hi I just build your board and found that the STM32F103C8T6's ROM size is not enough for USB version, only can go for GPIO. Replacing the MCU with STM32F103CBT6 can...

jcyfkimi

Thanks for such an amazing board. I just noticed you have the board under CC-BY-NC-SA, which (while also my license of choice), means it can't be considered Open Source Hardware...

Shadyman

TCXO COMOS connected to OSC2

2

Hi I have read article RA3APW and he suggests that TCXO CMOS version (in most cases we use) the TCXO should be connected to OSC2 pin instead OSC1 on ADF7021:...

sp2ong

On my duplex hat I have tested VHF only and UHF only split frequencies and works fine. If I try to set duplex hat TX to VHF and RX to...

BlueJohnnyOnly

RX Issue; RX/TX swapped on 1.0 board?

2

Hi This is not a bug report, more of a question... I have a 1.0 board, which basically works fine, but performs very badly, especially RX.TX/RX are 7.6 Mhz apart...

hb9eue