Timeline for How to use an ESP32, a digital potentiometer, and a MOSFET+optoisolator board to remotely control a 3–5.5 V, 50–100 µA circuit?
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 10 at 14:45 | history | edited | toolic | edited tags | |
| Oct 10 at 9:01 | comment | added | Luigi | Yes, you can see the current and voltage in this simulation (tinyurl.com/28q594t6) looking at R19, that is the resistor value I want to control with the digipot, and pin 6 and 7 are the switch close to R19 | |
| Oct 10 at 8:49 | comment | added | Tyassin | Just to understand....there is a voltage of 3V to 5.5V available between pin 6_GND and pin 7? The same voltage are only able to supply between 50uA to 100uA? | |
| Oct 10 at 7:31 | comment | added | Luigi | Question updated with more requirements as asked | |
| Oct 10 at 7:31 | history | edited | Luigi | CC BY-SA 4.0 | added 322 characters in body |
| Oct 9 at 3:38 | comment | added | Simon Fitch | The node labelled V+ would presumably be a voltage source of some kind, for this to work. Can you please include a source to power the system to the right of U4, in the schematic? Otherwise it's not clear how this system is supposed to operate. | |
| Oct 9 at 1:49 | comment | added | brhans | You should use the LOAD pin on your MOSFET board and find some other source/supply to connect to V+. | |
| Oct 8 at 22:49 | comment | added | jsotola | what is the device that you want to control? | |
| Oct 8 at 22:26 | history | edited | jsotola | CC BY-SA 4.0 | edited title |
| Oct 8 at 22:14 | history | asked | Luigi | CC BY-SA 4.0 |