FlipFlop Switch Module Pinout

This is the pinout for the FlipFlop Switch Module P/N:100.00002.01.0

The Reset/Prog button is used to issue a module Reset or force the module to enter programming mode. Button press shorter than 2 seconds will issue a Reset. To enter programming mode hold the button for 2 seconds or more then release. The module will then enter programming mode. The module can then be programmed via the 4 pin serial UART connector as seen on the right side of the picture below.

• Flashloader Boot Messages

How to know if you are really in flashloader mode?

1- Connect to the UART @ 77400bps.

2- Then press the Reset for more than 2 seconds.

You should see something similar to this:

  ets Jan  8 2013,rst cause:2, boot mode:(1,6)
  or
  ets Jan  8 2013,rst cause:2, boot mode:(1,7)

For more details refer to the following: https://github.com/esp8266/esp8266-wiki/wiki/Boot-Process

• Normal Boot message

1- Connect to the UART @ 77400bps.

2- Then press the Reset for less than 2 seconds.

PowerUp Reset

  ets Jan  8 2013,rst cause:2, boot mode:(3,0)

Hardware Reset

  ets Jan  8 2013,rst cause:2, boot mode:(3,6)
  or
  ets Jan  8 2013,rst cause:2, boot mode:(3,7)

• Expansion Connector There is a 20pin expansion connector. The Connector J3 has a pitch of 0.100mil. If you wish to use a breadboard, this is possible by using the first row of J3 and using the connector J4 providing you with a 0.300mil.

J3 Pinout	Description	J3/J4 Pinout	Description
1	VIN (5V-16V)	2	GND
3	GND	4	3.3V Out
5	GPIO2	6	GPIO15
7	GPIO5	8	GPIO4
9	UART-TX	10	UART-RX
11	CH_PD	12	ADC
13	GPIO14	14	GPIO16
15	GPIO13	16	GPIO12
17	RESET	18	GPIO0
19	GND	20	GND