Recent content by hyoo

what you need is just buy all parts which are in BOM and also order pcb from manufacturer like JLCPCB or any other. eagle file is not well organized. i am afraid to upload. i will upload in a week. it shouldn't be late because it take time to receive parts and pcb. but actually gerber file have...

Sorry. I forgot to mention about it. expected problem is bootloader. if you buy a atmega328p mcu. it should be fresh one which you need to burn bootloader yourself. for this, you need usb programmer connect to SPI pins of mcu. after, you can download program through usb/ttl as you are doing now...

I decided to solder MCU(atmega328) directly to the board. It make everything simple and clear. also it is actually nearer to final destination. - prepared small jumper pad to open/close D10 to led/dip switch. default is open to led. cut jumper trace and solder the other make D10 open to dip...

little bit confused. when arduino is starting, aref is vcc(from regulator). no need to do anything if you want to use vcc as vref. but you inserted 'analogReference(EXTERNAL)' in your code. it does mean you are connecting external reference voltage to aref pin. i thought you temporarily...

thanks for chopping(:)) chop chop. i like this english word. it remind me of something. chop chop chop. LM4040 is 1% accuracy. you don't want to use additional voltage reference ic? then it need to pull one pin header from vcc of regulator. let me know. one single 0805 led consume about 20-25ma...

I didn't care of neopixel. yes it consume relatively a lot current. AZ1117 is fine. also i suggest AMS1117-5.0 which has same sot223 package like AZ1117. more popular and easier to find out. one is compatible with the other in design.(same package/pin layout) LM4040-4.1 will be with...

PEC shouldn't be issue as i'm using your code. I was testing under common ground of solo and arduino. connection between solo and controller was normal. everything was fine but lack of battery info from mission planner. will investigate more with direct connection to solo's i2c later. about...

Mine is 5v. I think you used nano. It might be same 5v? You have any info about Solo's I2C bus? is it 5v or 3.3v? What you ordered from banggood is exactly same as mine. I tried previous version of arduino ide. no difference so probably it's not because of wire library. Regarding pcb shape, long...

Thanks for response. Here are what i tired for last couple of hours. - Insert debugging code. Problem is that there were no receive/request event at all. - Check SDA/SCL wire connection.(A5:SCL, A4:SDA) even i tried to cut pcb trace and used hard wires. - Adding pullup resistors(4.4K) to i2c...

Hello webbs, 4.57v is not VCC but just reference voltage generated by LM4040. but it was wrong value. eagle library i used for lm4040 had reversed connection. lm4040 was dead and i have no more. I used reference voltage from regulator like you did. Regarding board's size, I prefer smaller and...

PCB was arrived days ago. I assembled parts to the board tonight. This is renovated design which can be directly connected to solo. used salvaged battery connector from solo's and XT60. Result of test is not so accurate though i used LM4040(4.57 calibrated voltage). should feed voltage divider...

Hello webbs, You can connect directly normal(i guess) usb/ttl adapter to pro-mini's upper pin holes. VCC/TX/RX has no problem but different GND position. I personally used to bend GND pin of usb/ttl adapter and jump to pro-mini's. btw I corrected board to have header for usb/ttl adapter for...

Hello. Here is eagle schematic and board/gerber file from your design. PCB size is 55x63mm. But I used arduino pro mini instead because of size. It has not AREF pin. so I leave one pin with LM4040. it need to be jumped from pro mini. Just google it. You can find full information to do it. There...

if you pull main board out. You can see gimbal data cable connection. It is supplying power to gimbal. See attached picture. You can find pins showing 'GIMBAL BAT' and 'GIMBAL GROUND'. I have not measured 'GIMBAL BAT' voltage myself. You could.(Also it has power connection to Gopro. It is...

I tried same thing and It's possible to arm by traditional two sticks down. but you have to set fly:manual before doing it.