TPA3110 2X15W 3A Digital Audio Stereo Amplifier Board Module Mini Binaural AMP Controller DC 12V 8-18V High Power Ultra-PAM8610
10.74 9.95 $
ID: 14414
Quantity
LILYGO® Paxcounter LoRa V2.1_1.6.1 ESP32 433/868/915MHZ 0.96 Inch OLED SD Card Bluetooth WIFI Module Metering Passenger Flows
4.9 (82 votes) | 487 orders
Price:
US $
41.06 -
42.96
/ piece
- Ships From
LILYGO® TTGO & Paxcounter
Paxcounter is an ESP32 MCU based device for metering passenger flows in realtime. It counts how many mobile devices are around. This gives an estimation how many people are around.
Paxcounter detects Wifi and Bluetooth signals in the air, focusing on mobile devices by evaluating their MAC adresses.
Intention of this project is to do this without intrusion in privacy: You don't need to track people owned devices, if you just want to count them.
Therefore, Paxcounter does not persistenly store MAC adresses and does no kind of fingerprinting the scanned devices.
Data can either be be stored on a local SD-card, transferred to cloud using LoRa WAN network or MQTT over TCP/IP, or transmitted to a local host using serial (SPI) interface.
LoRa V2.1_1.61 compared to LoRa V1.0
We add the SMA and TP4054 to the board,which make it can do more things.
In terms of the power switch, we have changed the switching interaction mode.
The added SMA antenna can enhance signal transmission.
Product Description |
|
Working voltage |
1.8~3.7v |
Acceptable current |
10~14mA |
Transmit current |
120mA@+20dBm |
90mA@+17dBm |
|
29mA@+13dBm |
|
Operating frequency |
433/868M/915MHz |
Transmit power |
+20dBm |
Receive sensitivity |
-139dBm@LoRa &62.5Khz&SF=12&146bps |
-136dBm@LoRa &125Khz&SF=12&293bps |
|
-118dBm@LoRa &125Khz&SF=6&9380bps |
|
-123dBm@FSK&5Khz&1.2Kbps |
|
Frequency error |
+/-15KHz |
FIFO space |
64Byte |
Data rate |
1.2K~300Kbps@FSK |
0.018K~37.5Kbps@LoRa |
|
Modulation Mode |
FSK,GFSK,MSK,GMSK,LoRa TM，OOK |
Interface form |
SPI |
Sleep current |
334μA@SLEEP |
1.5uA@IDLE |
|
Operating temperature |
-40℃- +85℃ |
Digital RSSI function |
|
Automatic frequency correction |
Automatic gain control |
Fast wake-up and frequency hopping |
Highly configurable data packet handler |
SMA Antenna |
TP4054 |
Paxcounter Testing
https://github.com/cyberman54/ESP32-Paxcounter
Github
https://github.com/Xinyuan-LilyGo/TTGO-LoRa-Series
433/868/915 Mhz CH9102F Options
(Notice:The shipping list does not include battery and SD card）
1 X LoRa32 V2.1 433/868/915/923 Mhz
1 X Power Cable(Jst 2pin 1.25mm)
1 X Antenna
2 X Pin
- Package: Yes
- Dimensions (WxHxD)): 64.47*27*13mm
- Weight: 25g
- Model Number: LoRa32 V2.1_1.61 version
- Compatible Audio & Video Equipment Style: Amplifier,Display Equipment
- Brand Name: lilygo
- Origin: Mainland China
- Certification: NONE
- Support: Wholesale,Custom Made,Cooperate
- 923MHZ CH9102F: Q388
- 915MHZ CH9102F: Q211
- 433MHZ CH9102F: Q134
- 868MHZ CH9102F: Q168
SHIPPING AND DELIVERY
We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.
How do you ship packages?
Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.
Do you ship worldwide?
Yes. We provide free shipping to over 200 countries around the world. However, there are some location we are unable to ship to. If you happen to be located in one of those countries we will contact you.
What about customs?
We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.
How long does shipping take?
Shipping time varies by location. These are our estimates:
| Location | *Estimated Shipping Time |
|---|---|
| United States | 10-30 Business days |
| Canada, Europe | 10-30 Business days |
| Australia, New Zealand | 10-30 Business days |
| Central & South America | 15-30 Business days |
Do you provide tracking information?
Yes, you will receive an email once your order ships that contains your tracking information.
My tracking says “no information available at the moment”.
For some shipping companies, it takes 2-5 business days for the tracking information to update on the system.
Will my items be sent in one package?
For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.
If you have any other questions, please contact us and we will do our best to help you out.
REFUNDS & RETURNS POLICY
Order cancellation
All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.
Refunds
Your satisfaction is our #1 priority. Therefore, if you’d like a refund you can request one no matter the reason.
If you did not receive the product within the guaranteed time(60 days not including 2-5 day processing) you can request a refund or a reshipment.
If you received the wrong item you can request a refund or a reshipment.
If you do not want the product you’ve receive you may request a refund but you must return the item at your expense and the item must be unused.
- Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
- Your order did not arrive due to exceptional circumstances outside the control of CNTRONIC Consumer Electronics Retailer (i.e. not cleared by customs, delayed by a natural disaster).
- Other exceptional circumstances outside the control of cntronic.com
*You can submit refund requests within 15 days after the guaranteed period for delivery (60 days) has expired. You can do it by sending a message on Contact Us page
If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.
Exchanges
If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.
Please do not send your purchase back to us unless we authorise you to do so.
LARGE ORDER DEALS
Thank you for your interest doing business with us!
If you would like to get a discounted price for your large purchase orders, fill in the required blanks along with your email address, the product Item ID # and/or the link of the item that you want to order, item quantity (minimum of 30 pieces), shipping country and payment method is required. We will contact you with a discounted price as soon as we receive your inquiry.
