|  09:50  |  topi`  |   good idea. I just need proper soldering equipment ;)  | 
|  09:51  |  topi`  |   perhaps time to invest to a proper Weller  | 
|  10:09  |  vpeter  |   Or Ersa i-CON Nano or Pico :)  | 
|  10:53  |  jnettlet  |   topi`, if you are looking to trigger a 5V relay then you can also use a level shifter and control the relay via GPIOs  |