Pvelectronics WiFi NTP Sync Device Manuel utilisateur

NTP Sync Device

Issue 2 (01 June 2022)

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WiFi NTP Sync Device

For Nixie Clock

NTP Sync Device

Issue 2 (01 June 2022)

www.pvelectronics.co.uk

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REVISION HISTORY

Issue

Number

Date Reason for Issue

2 01 June 2022 Updated Version using ESP-01S

1 20 January 2017 New document

Standard Features:

 Compatibility: All our kits with GPS input from 3.5mm Jack

Socket

 Status Indicator LEDs: WiFi, NTP and Data Transmission

 Main power input: ~5V DC direct from clock PCB

 Baud rate: 9,600 bps

 Data Format: $GPRMC GPS Sentence.

 Cable length: 15cm / 6" (included)

 For use indoors only

Introduction:

The WiFi NTP Sync Device provides a convenient and low cost method to

synchronise time and date on our compatible Nixie Clocks.

Summary of Operation

On a factory power up, the device sets up in Access Point (AP) Mode.

This is a wireless network that you can connect to with your computer or

Smartphone. Once connected, you use your Smartphone to enter some

simple configuration settings and then re-boot the module. The module

then powers up in active mode, which will connect to your home WiFi

network and retrieve the time and date from an NTP server of your

choice. Time and date are sent to the clock as a 'fake' GPS Data

Sentence.

When data is sent to the clock, you will see a brief flash on the blue LED

on top of the ESP module. At startup, the module will send 5 pulses of

data, one pulse every 15 seconds. After stabilising, the module will then

not over-burden the NTP server, by sending data only every

approximately 55 minutes.

If you change the clock’s UTC offset parameters, this could take up to 55

minutes to take effect, so it might be quicker to briefly power the clock

off then on again, but ideally you should set the UTC offset before

configuring the WiFi Device.

NTP Sync Device

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Assembly

1. Check you have all the parts shown above, and then peel off

the protective film from the laser-cut support piece; Note that the

film may be blue, green white, or even clear, but there is a film on

both sides that needs to be peeled off.

2. Soldering the Jack Socket. Solder a blob of solder to the

pad of the Jack Connector as shown in the picture below.

NTP Sync Device

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Then place the connector in position and re-touch the pad with the

soldering iron whilst pressing the connector onto the PCB. This will

anchor the component and then you can solder the remaining

pads.

3. Soldering the 4X2 Header. Solder the 6X2 female header

as shown in the picture below.

NTP Sync Device

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4. Place the plexi support in the cutout slot on the circuit board.

5. Push the ESP module into place in the 4X2 header and it

should sit in the recess of the plexi support.

NTP Sync Device

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Setup Guide:

1. Configure Clock

Setup the clock for GPS reception at 9,600 bps. Don't forget to set your

local offset from GMT (UTC).

2. Connect

Always connect and disconnect whilst the clock is powered off.

Insert the cable into the back of the clock, and the other end of the cable

into the NTP Sync Device. Then power up the clock again.

3. Configure Device:

Upon initial power up, the 3 LEDs light briefly and then the blue DATA

LED on the ESP Module will light constantly. This indicates the device is

in Access point mode, which is where you can connect to it as if it were a

Wireless Hotspot.

NTP Sync Device

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Now follow the steps carefully below, using a smartphone or computer

1. Open up the Network

or WiFi settings on your

phone and look for the

NixieAP Access Point

2. Connect to NixieAP

You may get warnings

on your device that

internet is not available,

but ignore or dismiss

them

3. You may

automatically get the

landing page. If not,

open up your browser

and type 192.168.4.1

in the address bar

4. Click 'Configuration

and you will be taken to

this screen to set up

your WiFi and server.

Click 'Scan'

5. You should see your

WiFi name (SSID) -

select it. Then enter

your WiFi password. For

the NTP Server, we

suggest pool.ntp.org but

there are many others

6. Click 'save' and then

wait to be redirected

back to the home

landing page.......

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IMPORTANT: Now click 'Exit Portal' to save the settings.

The NTP Sync Device will reboot and attempt to connect to

your WiFi.

Status Indicator LEDs:

WIFI Steady: The module is connected to your WiFi Router

WIFI Flashing: The module is trying to connect to your WiFi Router

NTP Steady: The module successfully contacted the NTP Server

NTP Flashing: The module is trying to contact the NTP Server

DATA Steady: The module is in access point mode

DATA Flashing: Time data is being sent to the clock

Advanced:

To reset the module and erase all stored WiFi and server settings,

power up and whilst all 3 LEDs are lit, press and hold the button for

10 full seconds until the WiFi and NTP LEDs flash alternately.

Finally, slide the heat shrink over the module, ensuring the plexi

support is vertical, and heat gently with a hot air gun, to shrink it

over the ESP module to keep it in place. Don’t do this until you

have connected the module, configured it, and are sure it is

correctly setting the time.

You are now back at the

landing page. Click Exit

Portal. You must do

this, to save the

settings.

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