The ESC has a wire marked batt+, a wire marked curr, and nothing that says 5 volts. How will I power the ATTINY85

A buck converter board like this one would do it. It’s very small, 20 x 11 x 5 mm.

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Will that power multiple ATTINY85s

 

Will that power multiple ATTINY85s

An ATTiny85 draws about 300μA. More depending on what it’s driving. That buck-boost converter can supply up to 3A (depending on the input power current). Which is about 10,000 ATTiny85s.

To directly answer your question, Yes.

 

Will that power multiple ATTINY85s

That board will produce 1.5A without cooling, 3A with it. The ATTINY85 (and even the entire Digispark Pro) resquires on the order of hundreds of μA. so you could literally power thousands of them, in theory. In other words, “yes” but you recall that single point of failure was a concern, so you probably want some strategic redundancy.

 

An ATTiny85 draws about 300μA. That buck-boost converter can supply up to 3A (depending on the input power current). Which is about 10,000 ATTiny85s.

To directly answer your question, Yes.

Beat me by this much.

 

Will that power multiple ATTINY85s

What are you powering the motors with? Don't the motor controllers supply +5V to the three-pin input connector? Use that to power the ATTINY85s.

 

I'll power them with a 4S lipo. This electronic speed controller that I plan to use doesn't show any 5 volt. It shows the battery voltage and the ground and another wire that says Curr. Perhaps that one could be the 5v

 

I'll power them with a 4S lipo. This electronic speed controller that I plan to use doesn't show any 5 volt. It shows the battery voltage and the ground and another wire that says Curr. Perhaps that one could be the 5v

The spec sheet for the 50A BLHeli_S ESC states that is has a 5V BEC:
"Built-in 5V@2A BEC, which can be flight control.".
Why would you not use that to power the ATTINY circuit?

 

wire that says Curr. Perhaps that one could be the 5v

More likely to be a current-sense terminal.

 

The one I bought before didn't have 5v so maybe the new ones do now. I'll find out when I get another.

There is a physical space requirement which may cause me to decide to run two motors off each user input device. Will I be able to duplicate the output signal from the ATTINY85 to send signal to two motor pads from one ATTINY85 or would I need to double the amount of ATTINY85s and duplicate the signal from each user input device

 

The one I bought before didn't have 5v so maybe the new ones do now. I'll find out when I get another.

There is a physical space requirement which may cause me to decide to run two motors off each user input device. Will I be able to duplicate the output signal from the ATTINY85 to send signal to two motor pads from one ATTINY85 or would I need to double the amount of ATTINY85s and duplicate the signal from each user input device

Do you want to control two motors with one joystick or have two joysticks to control two motors independently with one ATTINY85?
Either way, it can be done.

 

Thanks

I'm planning to control two motors with one joystick

 

What is the thing that comes with the DigiSpark that looks like nine metal pins connected by plastic

Where on the DigiSpark will I connect the micro joystick, and where will I connect the output to the ESC

 

What is the thing that comes with the DigiSpark that looks like nine metal pins connected by plastic

Where on the DigiSpark will I connect the micro joystick, and where will I connect the output to the ESC

The pins on the plastic separator can be soldered into the holes around the edge of the Digispark if you want to use it in a socket.
If you use the program I posted in answer #42, this is how you would connect them:

 

Thanks

Much appreciated

I only see 5v, gnd, vin, R0, and P1 through P5 on the DigiSpark. I don't see D0 and A1 like in the diagram.

 

Thanks

Much appreciated

I only see 5v, gnd, vin, R0, and P1 through P5 on the DigiSpark. I don't see D0 and A1 like in the diagram.

It depends on which version you use:

 

It depends on which version you use:

View attachment 260543

Thank you

I see D0 I don't see A1

 

Thank you

I see D0 I don't see A1

It's on P2/D2/Analog input 1/SCK/SCL

 

For the voltage reducers, I don't understand what it means in the fourth photo when it says to cut off the circuit

https://www.amazon.com/dp/B08JZ5FVLC/ref=cm_sw_r_apan_glt_i_87VKC0QWHB99CPPPEQS4

 

For the voltage reducers, I don't understand what it means in the fourth photo when it says to cut off the circuit

https://www.amazon.com/dp/B08JZ5FVLC/ref=cm_sw_r_apan_glt_i_87VKC0QWHB99CPPPEQS4

The picture shows a solder bridge in place at the 5V tap. If you want to change the output voltage, you have to cut that solder bridge and add one at the voltage you need.