Helium Mapper / Tracker - TTGO T-Beam

Type: Mapper

Helium Mapper / Tracker - TTGO T-Beam

A TTGO T-Beam is an ESP32 development board that also integrates a SemTech chip for LoraWAN communication, and a Neo-6M GPS receiver...
Sounds boring right..?

Well in this case, we have turned it into a HELIUM NETWORK MAPPER (or Tracker)!

With this, you will be able to contribute to the Helium Coverage Mapping Project, or GPS track random cargo/assets through the Helium Network.

What does Mapping Network Coverage for Helium mean?

In short, you will be reporting physical areas that can send and receive LoraWAN signals within the Helium Network.
If you are old like me, you should remember some of the old Verizon TV commercials, and the "Can you hear me now?" guy. That's exactly what we are doing here, making sure there is network coverage and reporting that to the mappers.helium.com database.  So please join us in mapping out the coverage of the Helium Network, so we too can start bragging about the LoraWAN coverage we have!

What setup is involved?

When you receive the TTGO T-Beam, it will come loaded with a Fiz-Tech revision of an open source code modified to be used for the Helium Network.  So no programming of the actual device is needed.   
You will need to add the device to the Helium Console (console.heloium.com) using the 3 strings of numbers included with the device, the DEV EUI, APP EUI, and APP KEY. And then using functions and integrations, route that traffic/data to the Mappers or Cargo platforms.
If you do not have a Helium Console account, you can signup free and currently upon setup you will receive 10,000 Data Credits (0.10 USD).  These Data Credits are used to every time a end-device (such as the T-Beam) sends data through the network.  If you are just using the T-Beam, this will last you quite a while. You will be amazed on how cheap it costs to run devices on the Helium Network. 
A guide will be included with purchase. 

Can I use this for other things?

Yes!  You may use this device however you wish (so long as it is legal).  Use it to track fleets of vehicles, or hikes along a trail.  You may choose to reprogram it for any other purpose if you have the knowledge to do so.


What is the Warranty and Support?

- Up to 30 days after purchase, repair or replace deflective units. Buyer will pay for shipping defective unit back, and Fiz Tech will pay for shipping the repaired/replacement unit. 
- Most common issue can be related to screen, such as no display or freezes; though unit itself still operates.  Most of the time, a power cycle will correct.  If you have a solder iron, this can be a quick fix.
- Support for initial setup within console.helium.com and mappers.helium.com provided via YouTube / Written guide.  Live support within Official Helium Discord, and community support in #mappers channel.

All cases may have some small "defects" in the printing, such as burnt areas, or areas where print layers may not have formed correctly.  This has no effect on the integrity of case, just consider them "Birthmarks".   :)

3D Printed Case Design - "The Backpacker"

Good for Backpackers!

What is included:

1x TTGO T-Beam
"The Backpacker" 3D Printed Case

What is needed (NOT INCLUDED):

1x 18650 Battery 


3D Printed Case Design - "The Joey"

Designed by Helium enthusiast "Joey H.", this 2-piece case offers a sleek and optimized design just for Helium Mapping on your own vehicle dashboard.
This version of the T-Beam has the antenna SMA connection pointing in an upwards direction which makes this case version best for sitting on flat surfaces.
The case also features a 4-corner screw system to secure the face-plate of the case, to the back bucket piece.

What is included: 

1x TTGO T-Beam
"The Joey" 3D Printed Case
4x 2mm Hex Screws,
1x 2mm Allen Key.

What is needed (NOT INCLUDED):

1x 18650 Battery 


3D Printed Case Design - "The Biker"

Can be zip-tied to a bike!

What is included:

1x TTGO T-Beam
"The Biker" 3D Printed Case

What is needed (NOT INCLUDED):

1x 18650 Battery 


The Nitty Gritty Geek Details:

Hardware for "The Joey" / "The Biker" case:
TTGO T-Beam V1.1 - ESP32 LORA SMA 915MHz - NEO-6M GPS IPEX - 18650 Battery Holder

Product Features
Lastest ESP32 Version: REV1 WIFI Bluetooth 8MB PSRAM 4MB Flash 3D Antenna LORA

Product Description
Working voltage: 1.8~3.7v
Acceptable current:10~14mA
Transmit current: 120mA@+20dBm
Operating frequency: 433/470MHz(433HMz version) /868M/915M(868MHz version)
Transmit power: +20dBm
Receive sensitivity :-139dBm@LoRa &62.5Khz&SF=12&146bps
-136dBm@LoRa &125Khz&SF=12&293bps
-118dBm@LoRa &125Khz&SF=6&9380bps
Frequency error:+/-15KHz
FIFO space :64Byte
Data rate :1.2K~300Kbps@FSK
Modulation Mode :FSK,GFSK,MSK,GMSK,LoRa TM,OOK
Interface form :SPI
Sleep current :0.2uA@SLEEP
Operating temperature :-40℃- +85℃
Digital RSSI function
Automatic frequency correction
Automatic gain control
Low voltage detection
Fast wake-up and frequency hopping
Highly configurable data packet handler

GPS modules NEO-6M, 3V-5V power supply Universal
Destined module with ceramic antenna, signal super
Save the configuration parameter data EEPROM Down
With data backup battery
There are LED signal indicator
Default Baud Rate: 9600

Power Supply Input USB 5V/1A
Charging current 500mA
Battery Input 3.7-4.2V
Charge IC AXP192

OLED Description:
1.Size: 0.96 inch
2.High resolution: 128 * 64
3.Color: white
4.Viewing angle: > 160 °
5.Driver IC: SSD1306
6.Working temperature: -30 celcius ~ 80 celcius
7.Module volume (generous): 27.0MM * 27.0MM * 4.1MM
8.Supports many control chip: Fully compatible with Arduino, 51 series, MSP430 series,STM32/2, CSR chip, etc. (a lot of routines for reference)
9.Wide voltage support: without any modification, directly supports 3.3V ~ 5V DC
10.Ultra-low power consumption: Normal operation Is 0.04W
11.IO port occupies minimal display: The IIC communication,as long as the two IO ports