- Thu May 07, 2015 8:36 am
#16801
On the esp8266 or on the break-out-board?
- Thu May 07, 2015 2:08 pm
#16831
LED_PIN = 4 -- GPIO2
TIME_ALARM = 500 -- 0.5 second
gpio.mode(LED_PIN, gpio.OUTPUT)
As you can see: insert from the program: GPIO2 has position 4, but on chip GPIO2 has pin 15 & on board ESP-xy pin is different.
From where number 4 comes? where is the table ?
eriksl wrote:On the esp8266 or on the break-out-board?
LED_PIN = 4 -- GPIO2
TIME_ALARM = 500 -- 0.5 second
gpio.mode(LED_PIN, gpio.OUTPUT)
As you can see: insert from the program: GPIO2 has position 4, but on chip GPIO2 has pin 15 & on board ESP-xy pin is different.
From where number 4 comes? where is the table ?
- Thu May 07, 2015 2:17 pm
#16833
ESP8266 Chip datasheet and informations are still ... let's say ... quite fragile, if you compate it with ATMega datasheets
It's just a PIN allocation, might look confusing but looks like that for example:
0 - GPIO16
1 - GPIO5
2 - GPIO4
3 - GPIO0
4 - GPIO2
5 - GPIO14
6 - GPIO12
7 - GPIO13
8 - GPIO15
9 - GPIO3
10 - GPIO1
11 - GPIO9
12 - GPIO10
https://github.com/nodemcu/nodemcu-firmware
PS: if any typo error above, please correct.
keen4 wrote:eriksl wrote:On the esp8266 or on the break-out-board?
LED_PIN = 4 -- GPIO2
TIME_ALARM = 500 -- 0.5 second
gpio.mode(LED_PIN, gpio.OUTPUT)
As you can see: insert from the program: GPIO2 has position 4, but on chip GPIO2 has pin 15 & on board ESP-xy pin is different.
From where number 4 comes? where is the table ?
ESP8266 Chip datasheet and informations are still ... let's say ... quite fragile, if you compate it with ATMega datasheets
It's just a PIN allocation, might look confusing but looks like that for example:
0 - GPIO16
1 - GPIO5
2 - GPIO4
3 - GPIO0
4 - GPIO2
5 - GPIO14
6 - GPIO12
7 - GPIO13
8 - GPIO15
9 - GPIO3
10 - GPIO1
11 - GPIO9
12 - GPIO10
https://github.com/nodemcu/nodemcu-firmware
PS: if any typo error above, please correct.
ESP8266 MPDMv4 AC MAINS Dimmer Home: http://esp8266-projects.com/2016/04/mpdmv4-mains-dimmerswitch-html/
Available on Tindie: https://www.tindie.com/products/nEXT_EVO1/universal-ac-mains-dimmer-mpdmv41/
Available on Tindie: https://www.tindie.com/products/nEXT_EVO1/universal-ac-mains-dimmer-mpdmv41/
- Fri May 08, 2015 1:35 am
#16863
The numbers in the above table are pin numbers on the package ("ic", "chip"). I don't think it's very constructive to make such a list for every break-out-board available, there are a LOT now. So for each user the only thing left to do is map the package pin number to the pin number on their break-out-board. I've left out the pin numbers on my esp201 out exactly for that purpose. There are quite enough diagrams google'ble that show mappings between package and esp201 (etc.).
keen4 wrote:eriksl wrote:On the esp8266 or on the break-out-board?
LED_PIN = 4 -- GPIO2
TIME_ALARM = 500 -- 0.5 second
gpio.mode(LED_PIN, gpio.OUTPUT)
As you can see: insert from the program: GPIO2 has position 4, but on chip GPIO2 has pin 15 & on board ESP-xy pin is different.
From where number 4 comes? where is the table ?
The numbers in the above table are pin numbers on the package ("ic", "chip"). I don't think it's very constructive to make such a list for every break-out-board available, there are a LOT now. So for each user the only thing left to do is map the package pin number to the pin number on their break-out-board. I've left out the pin numbers on my esp201 out exactly for that purpose. There are quite enough diagrams google'ble that show mappings between package and esp201 (etc.).
