ESP8266 Community Forum

- Wed Sep 07, 2016 4:39 pm #54663 Hi,

Using a 9g mini servo, if I follow the wiring diagram from the original Arduino schematic, it does not work.

Do I need a logic level converter on the signal for this to work? (some posts say the 3.3V is suffice).

How are these wired?

Thanks,
Nic

Last edited by Nic Roche on Thu Sep 08, 2016 4:54 am, edited 1 time in total.

- Thu Sep 08, 2016 2:32 am #54675 I only know a 9g mini SERVO. As "sweep" is a term not usually used with steppers and steppers usually won't be directly connected to the µC, I assume you talk about servos.

Since my crystal ball is at maintainance at the moment, I can't see neither your setup nor your sketch.

I can, otoh, confirm that in general all servos that I tried did run directly on the esp w/o any level shifting, just by using the "servo" lib accompanying the esp8266 core.

- Thu Sep 08, 2016 5:00 am #54678 Sorry I was looking at a few options; I corrected the stepper reference.

I used the servo example "Sweep":
https://github.com/esp8266/Arduino/blob ... /Sweep.ino

Wiring same as http://arduino.cc/en/Tutorial/Sweep substituting esp for arduino on GPIO2 (and 5V on servo).

I will try a different servo and ESP.

I only know a 9g mini SERVO. As "sweep" is a term not usually used with steppers and steppers usually won't be directly connected to the µC, I assume you talk about servos.

Since my crystal ball is at maintainance at the moment, I can't see neither your setup nor your sketch.

I can, otoh, confirm that in general all servos that I tried did run directly on the esp w/o any level shifting, just by using the "servo" lib accompanying the esp8266 core.

- Thu Sep 08, 2016 11:34 am #54686 I forgot: I powered the servo from 5V, connected it to esp via 1k resistor.