LoRa/GPS HAT for Raspberry pi - Revision history

Alvin: /* LEDs */

2017-05-18T10:11:42Z

‎LEDs

Alvin: /* LEDs */

2017-05-18T10:11:22Z

‎LEDs

Alvin: /* Wiring */

2017-05-18T10:09:18Z

‎Wiring

Alvin: /* Wiring */

2017-05-18T10:08:25Z

‎Wiring

Alvin: /* Wiring */

2017-05-18T10:07:15Z

‎Wiring

Alvin: /* Wiring */

2017-05-18T10:03:16Z

‎Wiring

Alvin: /* Specifications */

2017-05-18T09:45:14Z

‎Specifications

Alvin: /* Hardware version info */

2017-05-18T09:43:45Z

‎Hardware version info

Alvin: /* Introduction */

2017-05-18T09:01:03Z

‎Introduction

Alvin: /* Schematic */

2017-05-18T07:58:06Z

‎Schematic

@@ Line 103: / Line 103: @@
 ==LEDs==
-PWR: Power Indicate LED. Turns on once there is power.
+*PWR: Power Indicate LED. Turns on once there is power.
-RX: Indicate there is a wireless packet received in the LoRa module.
+*RX: Indicate there is a wireless packet received in the LoRa module.
-D_FIX: The led blink ervey 100ms after the GPS fixing position.
+*3D_FIX: The led blink ervey 100ms after the GPS fixing position.
 ==Schematic==
 [[File:LoRa GPS HAT Schematic.png]]

@@ Line 103: / Line 103: @@
 ==LEDs==
-*PWR: Power Indicate LED. Turns on once there is power.
+PWR: Power Indicate LED. Turns on once there is power.
-*RX: In
+RX: Indicate there is a wireless packet received in the LoRa module.
 ==Schematic==
 [[File:LoRa GPS HAT Schematic.png]]

@@ Line 86: / Line 86: @@
 ==Wiring==
 You can see the RaspberyyPi2 B GPIO definition as below:
 [[File:RPi GPIO LoRa HAT.jpg]]
-RPi GPIO
+*RPi GPIO
 The wiring between LoRa/GPS HAT and RaspberryPi 2B:
@@ Line 95: / Line 94: @@
 [[File:LoRa GPS HAT wiring RaspberryPi 2B.png]]
-LoRa HAT Wiring
+*LoRa HAT Wiring
 You can see it more careful at below:
@@ Line 101: / Line 100: @@
 [[File:LoRa HAT pin.png]]
-LoRa HAT pin definition
+*LoRa HAT pin definition
 ==LEDs==

@@ Line 88: / Line 88: @@
 [[File:RPi GPIO LoRa HAT.jpg]]
 RPi GPIO
@@ Line 93: / Line 94: @@
 [[File:LoRa GPS HAT wiring RaspberryPi 2B.png]]
 LoRa HAT Wiring
@@ Line 98: / Line 100: @@
 [[File:LoRa HAT pin.png]]
 LoRa HAT pin definition

@@ Line 88: / Line 88: @@
 [[File:RPi GPIO LoRa HAT.jpg]]
 The wiring between LoRa/GPS HAT and RaspberryPi 2B:
 [[File:LoRa GPS HAT wiring RaspberryPi 2B.png]]
 You can see it more careful at below:
 [[File:LoRa HAT pin.png]]
 ==LEDs==

@@ Line 25: / Line 25: @@
 ==Specifications==
-Lora Spec
+'''Lora Spec'''
 *168 dB maximum link budget.
 *+20 dBm - 100 mW constant RF output vs.
@@ Line 43: / Line 43: @@
 *Built-in temperature sensor and low battery indicator.
-GPS Spec
+'''GPS Spec'''
 *Based on MT3339.
 *Power Acquisition:25mA,Power Tracking:20mA.
@@ Line 60: / Line 60: @@
 *Dynamic Performance Altitude Max.18000m，Maximum Velocity Max.515m/s，Maximum Acceleration 4G.
 *L1 Band Receiver(1575.42MHz) Channel 22 (Tracking) /66 (Acquisition).
 ==Features==

@@ Line 15: / Line 15: @@
 ==Hardware version info==
-Hardware Source is in: LoRa GPS HAT source
+Hardware Source is in: '''LoRa GPS HAT source'''
 *'''LoRa/GPS_HAT v1.0:''' The first hardware release for the LoRa/GPS_HAT.
 *'''LoRa/GPS_HAT v1.3:''' Add a trace from LoRa DIO1 to RPi GPIO4(wiringPi definition). Add a trace from Lora DIO2 to RPi GPIO5(wiringPi definition). They are required by LMIC library in RPi.

@@ Line 2: / Line 2: @@
 *LoRa/GPS HAT is an expension module for LoRaWan for using with the Raspberry Pi.This product is intended for those interested in developing LoRaWAN solutions.
 *The LoRa/GPS HAT is based on the SX1276/SX1278 transceiver.The add on L80 GPS (base on MTK MT3339) is designed for applications that use a GPS connected via the serial ports to the Raspberry Pi such as timing applications or general applications that require GPS information.
 *The transceivers of the LoRa/GPS HAT feature the LoRa™ long range modem that provides ultra-long range spread spectrum communication and high interference immunity whilst minimising current consumption.The LoRa/GPD HAT can achieve a sensitivity of over -148dBm using a low cost crystal and bill of materials. The high sensitivity combined with the integrated +20 dBm power amplifier yields industry leading link budget making it optimal for any application requiring range or robustness. LoRa™ also provides significant advantages in both blocking and selectivity over conventional modulation techniques, solving the traditional design compromise between range, interference immunity and energy consumption.
 *This board can calculate and predict orbits automatically using the ephemeris data (up to 3 days) stored in internal flash memory, so the HAT can fix position quickly even at indoor signal levels with low power consumption.With AlwaysLocate™ technology, the Lora/GPS HAT can adaptively adjust the on/off time to achieve balance between positioning accuracy and power consumption according to the environmental and motion conditions.The GPS also supports automatic antenna switching function. It can achieve the switching between internal patch antenna and external active antenna.Moreover, it keeps positioning during the switching process.

← Older revision		Revision as of 07:58, 18 May 2017
Line 97:		Line 97:

	==Schematic==		==Schematic==
−	[[File:~~RPi GPIO~~ LoRa HAT.~~jpg~~]]	+	[[File:LoRa GPS HAT Schematic.png]]