user41546: for programming my ESP-01 chip I bought an "USB Uart", but it looks different to all the ones in all tutorials. I don't know how to connect the uart to the esp.
The uart i bought has following pins: 3V3, DTR, RXI, TX0, GND, +5V. The ESP01 has the known layout (http://www.esp8266.com/wiki/doku.php?id=esp8266-module-family#esp-01). 
Once connected: Do I need an external power source, or do i just connect the usb uart to my computer?
Many thanks

user41546: Just to give an anwser for users struggling with the same problem I will sum up what helped me.
To connect the UART to the ESP the Beginner's Guide to the ESP8266 from @tttapa was very helpful. Another helpful link was this one:
https://www.allaboutcircuits.com/projects/flashing-the-ESP-01-firmware-to-SDK-v2.0.0-is-easier-now/
So in my case I just needed the GND, 3V3, RXI and TX0 pins from my UART.
I needed no external powersupply for the flashing process and some simple examples. 

41546: <p>for programming my ESP-01 chip I bought an "USB Uart", but it looks different to all the ones in all tutorials. I don't know how to connect the uart to the esp.
The uart i bought has following pins: 3V3, DTR, RXI, TX0, GND, +5V. The ESP01 has the known layout (<a href="http://www.esp8266.com/wiki/doku.php?id=esp8266-module-family#esp-01" rel="nofollow noreferrer">http://www.esp8266.com/wiki/doku.php?id=esp8266-module-family#esp-01</a>). </p>

<p>Once connected: Do I need an external power source, or do i just connect the usb uart to my computer?</p>

<p>Many thanks</p>
 41546: <p>Just to give an anwser for users struggling with the same problem I will sum up what helped me.</p>

<p>To connect the UART to the ESP the <code>Beginner's Guide to the ESP8266</code> from @tttapa was very helpful. Another helpful link was this one:
<a href="https://www.allaboutcircuits.com/projects/flashing-the-ESP-01-firmware-to-SDK-v2.0.0-is-easier-now/" rel="nofollow noreferrer">https://www.allaboutcircuits.com/projects/flashing-the-ESP-01-firmware-to-SDK-v2.0.0-is-easier-now/</a></p>

<p>So in my case I just needed the GND, 3V3, RXI and TX0 pins from my UART.</p>

<p>I needed no external powersupply for the flashing process and some simple examples. </p>
