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Which module form factor do you prefer?

57
34%
8
5%
82
49%
6
4%
13
8%
User avatar
By Squonk
#90 EDIT: please check the ESP8266 Github Wiki for reference: https://github.com/esp8266/esp8266-wiki ... e_versions

From this this Taobao shop, here are the different ESP8266-based module pinouts and physical dimensions (and almost layout too 8-) ):

ESP-01
The most common module with printed PCB antenna:
  • 2x4 2.54 mm pitch header
  • built-in PCB-printed antenna
  • 3 GPIOs: GPOI0/2/16
  • UART URXD/UTXD
  • RESET and CH_PD (powerdown)
  • VCC/GND
  • 14.2 mm W x 14.2 mm L
ESP-01.jpg


ESP-02
A less common module with antenna connector, that may be compatible with breadboards:
  • Dual 1x4 2.54 mm pitch header in DIP form factor
  • built-in U-FL connector for external antenna
  • 2 GPIOs: GPOI0/2
  • UART URXD/UTXD
  • RESET and CH_PD (powerdown)
  • VCC/GND
  • 14.7 mm W x 14.2 mm L
ESP-02.jpg


ESP-03
A SMT (Sufrace Mount Technology) module with all pins broken out to castellated pads with built-in ceramic antenna:
  • Dual 1x7 2 mm pitch castellated pads
  • built-in ceramic antenna
  • 7 GPIOs: GPOI0/2/12/13/14/15/18
  • UART URXD/UTXD
  • RESET and CH_PD (powerdown)
  • VCC/GND
  • 12.2 mm W x 17.4 mm L
ESP-03.jpg


ESP-04
Another SMT (Sufrace Mount Technology) module with all pins broken out to castellated pads without built-in antenna:
  • Dual 1x7 2 mm pitch castellated pads
  • external antenna on pad
  • 7 GPIOs: GPOI0/2/12/13/14/15/18
  • UART URXD/UTXD
  • RESET and CH_PD (powerdown)
  • VCC/GND
  • 12.0 mm W x 15.0 mm L
ESP-04.jpg


ESP-05
A simple UART-only module with antenna connector:
  • Single 1x4 2.54 mm pitch header
  • built-in U-FL connector for external antenna
  • *]No GPIO
  • UART URXD/UTXD
  • No RESET nor CH_PD (powerdown)
  • VCC/GND
  • 14.2 mm W x 14.2 mm L
ESP-05.jpg
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Last edited by Squonk on Mon Dec 08, 2014 6:10 am, edited 2 times in total.
User avatar
By RichardS
#91 You should describe them better, not everyone will pickup that say -03 have onboard proper antenna and others have UFL etc....

Maybe edit your post and add these factors :-)

Richard.
User avatar
By RichardS
#96 Some how your post went in twice. I delete one of them....

I am with you I like FCC, however, Asian modules for RF devices are 99% of the time NEVER FCC'd, if this module ever is, it will not be $5 anymore. And if they say FCC they are not, I have checked many times and only once in at least 10-20 checks they were.

But I hear ya!

Richard.