@ -112,6 +112,66 @@ hook-up a USB-BUB. I recommend jumpering the flash pin (next to GND) to GND and
hook the reset pin (6) to the USB-BUB's DTR (should happen automatically). RX&TX also go
straight through).
Wifi-link-12
------------
The wifi-link has an esp-12 modulde and an FTDI connector (with wrong pinout!).
The underside is marked "Wifi-link-12-v2 Jeelabs TvE2015".
It comes preloaded with the latest version of esp-link V2.
The ftdi connector has the following pin-out:
- 1: GND (marked top&bottom)
- 2: CTS (used as ISP to program ARM processors, also esp's TX when flashing the esp)
- 3: 5V (marked on bottom)
- 4: TX (from the esp)
- 5: RX (to the esp)
- 6: DTR (used ass reset to program AVR and ARM processors, also esp's RX when flashing the esp)
Power: the on-board LM3671 switching regulator can provide 600mA while staying cool and is good from about 3.6v to 5.5v!
Connect power to the marked power connector or to the FTDI connector (GND marked, 5V on 3rd pin). Do not exceed 5.5v!!
It is possible to bypass the on-board regulator and power the wifi-link directly with 3.3v: connect the 3.3v to the FTDI connector ("5v" pin) and switch the jumper on the bottom from 5v to 3v3 (you need to cut the tiny trace on the 5v side and jumper the two pads on the 3v3 side).
On power-up you should see the green LED on for ~1 second (the yellow should go on too, but
the firmware may not be configured correctly). After that the green should blink according to the
patterns described in the README's LED indicators section. Follow the Wifi configuration details
section thereafter.
The bottom also has a "sleep" jumper which connects the esp's reset pin with its gpio16 to enable deep-sleep
mode. This jumper is open and must be bridged to use the timed-wake-up feature of the esp's deep-sleep mode.
To connect a JeeNode to the esp-bridge to flash the AVR or debug it, plug it into the FTDI
port straight, i.e. the component side of the JeeNode and of the wifi-link will be on the top.
To connect an arduino, jumper gnd, tx, rx, and dtr for reset. The wifi-link-12-v2 has a 2.2K resistor on rx (serial going from AVR to esp) in order to protect it from 5v signals.
To program the JeeNode or AVR, having set-up the Wifi through the web pages, run avrdude with an
option like "-Pnet:esp-link:23" (you can use an IP address instead of `esp-link`). My test command