Search found 4 matches
- Thu Feb 08, 2024 11:55 am
- Forum: GD-77 / DM-1801 / RD-5R / GD-77S
- Topic: GPS (GP-02) kit module fitted in a GD-77
- Replies: 53
- Views: 24963
Re: GPS (GP-02) kit module fitted in a GD-77
I know about that pin, but there is no PAD for it. What append in case that regulator get shorted for whatever reason, do you thing the MCU GPIO will survive ? On EN leg is only pull up resistor and LP3992. In your scenario fault may can short to ground or pull to 3.3 from regulator gd77. In my cas...
- Thu Feb 08, 2024 10:53 am
- Forum: GD-77 / DM-1801 / RD-5R / GD-77S
- Topic: GPS (GP-02) kit module fitted in a GD-77
- Replies: 53
- Views: 24963
Re: GPS (GP-02) kit module fitted in a GD-77
The power control is done using a N-Channel MOSFET (AO3400, cheap and I have plenty), and 2 resistors (300kΩ between Source and Gate, 200Ω on the Gate line). I use to Power Control for GPS built in voltage stabilizer in GP-02 Kit. Small chip LP3992 have a ENABLE leg. So i connected to CPU and seems...
- Thu Feb 08, 2024 10:20 am
- Forum: GD-77 / DM-1801 / RD-5R / GD-77S
- Topic: GPS (GP-02) kit module fitted in a GD-77
- Replies: 53
- Views: 24963
Re: GPS (GP-02) kit module fitted in a GD-77
The power control is done using a N-Channel MOSFET (AO3400, cheap and I have plenty), and 2 resistors (300kΩ between Source and Gate, 200Ω on the Gate line). I use to Power Control for GPS built in voltage stabilizer in GP-02 Kit. Small chip LP3992 have a ENABLE leg. So i connected to CPU and seems...
- Thu Feb 08, 2024 9:48 am
- Forum: GD-77 / DM-1801 / RD-5R / GD-77S
- Topic: GPS (GP-02) kit module fitted in a GD-77
- Replies: 53
- Views: 24963
Re: GPS (GP-02) kit module fitted in a GD-77
I really Thank You for guide how add GPS to GD77
I have question, bold satellite number is for Beidou system?
I have question, bold satellite number is for Beidou system?