Schematic for LoRa Telemetry + GPS Template: This project is a...

LoRa Telemetry Project Breakdown

flux

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Using Knowledge Base Tool.

Starting 9 component searches

Dispatching Library tool to find: "ZED-F9P. Purpose: High-precision multi-band GNSS RTK module for centimeter-level positioning, UART/SPI/I2C to ESP32-S2, external antenna via U.FL, 3.3V supply, low power modes."

Dispatching Library tool to find: "NEO-F9P. Purpose: Compact u-blox RTK GNSS module alternative to ZED-F9P; L1/L2 multi-band, UART/I2C, U.FL, 3.3V logic."

Dispatching Library tool to find: "LG69T. Purpose: Quectel RTK GNSS module with dual-band and UART; integration with ESP32 for high-precision GNSS."

Dispatching Library tool to find: "UM982. Purpose: Unicore dual-frequency RTK GNSS module; UART interface; external antenna; low power."

Dispatching Library tool to find: "XBP9B-DMST-002. Purpose: Digi XBee-PRO 900HP 915 MHz telemetry module for base-station corrections; UART interface; U.FL antenna; long range point-to-point."

Dispatching Library tool to find: "XBee-PRO 900HP. Purpose: 900 MHz telemetry module for RTK corrections; UART; high link budget; configurable data rate."

Dispatching Library tool to find: "RFM95W-915S2. Purpose: 915 MHz LoRa module for correction data link; SPI to MCU; U.FL; lower data rate but robust."

Dispatching Library tool to find: "CC1310 module. Purpose: Sub-GHz 915 MHz transceiver module for FSK/OOK links; UART/SPI; low power; long range."

Dispatching Library tool to find: "E32-915T30D. Purpose: 915 MHz 1W telemetry module (Ebyte) with UART; point-to-point link for RTK corrections; SMA/U.FL."

Creating search plan for: "ZED-F9P. Purpose: High-precision multi-band GNSS RTK module for centimeter-level positioning, UART/SPI/I2C to ESP32-S2, external antenna via U.FL, 3.3V supply, low power modes."

Creating search plan for: "NEO-F9P. Purpose: Compact u-blox RTK GNSS module alternative to ZED-F9P; L1/L2 multi-band, UART/I2C, U.FL, 3.3V logic."

Creating search plan for: "LG69T. Purpose: Quectel RTK GNSS module with dual-band and UART; integration with ESP32 for high-precision GNSS."

Creating search plan for: "UM982. Purpose: Unicore dual-frequency RTK GNSS module; UART interface; external antenna; low power."

Creating search plan for: "XBP9B-DMST-002. Purpose: Digi XBee-PRO 900HP 915 MHz telemetry module for base-station corrections; UART interface; U.FL antenna; long range point-to-point."

Creating search plan for: "XBee-PRO 900HP. Purpose: 900 MHz telemetry module for RTK corrections; UART; high link budget; configurable data rate."

Creating search plan for: "RFM95W-915S2. Purpose: 915 MHz LoRa module for correction data link; SPI to MCU; U.FL; lower data rate but robust."

Creating search plan for: "CC1310 module. Purpose: Sub-GHz 915 MHz transceiver module for FSK/OOK links; UART/SPI; low power; long range."

Creating search plan for: "E32-915T30D. Purpose: 915 MHz 1W telemetry module (Ebyte) with UART; point-to-point link for RTK corrections; SMA/U.FL."

Searching: "undefined"

Found 75 results.

Searching: "LG69T. Purpose: Quectel RTK GNSS module with dual-band and UART; integration with ESP32 for high-precision GNSS."

Found 61 results.

Searching: "RFM95W-915S2. Purpose: 915 MHz LoRa module for correction data link; SPI to MCU; U.FL; lower data rate but robust."

Found 60 results.

Searching: "XBee-PRO 900HP. Purpose: 900 MHz telemetry module for RTK corrections; UART; high link budget; configurable data rate."

Searching: "undefined"

Found 45 results.

Searching: "XBP9B-DMST-002. Purpose: Digi XBee-PRO 900HP 915 MHz telemetry module for base-station corrections; UART interface; U.FL antenna; long range point-to-point."

Searching: "undefined"

Found 60 results.

Searching: "NEO-F9P. Purpose: Compact u-blox RTK GNSS module alternative to ZED-F9P; L1/L2 multi-band, UART/I2C, U.FL, 3.3V logic."

Found 60 results.

Searching: "UM982. Purpose: Unicore dual-frequency RTK GNSS module; UART interface; external antenna; low power."

Found 75 results.

Searching: "E32-915T30D. Purpose: 915 MHz 1W telemetry module (Ebyte) with UART; point-to-point link for RTK corrections; SMA/U.FL."

Found 61 results.

Searching: "ZED-F9P. Purpose: High-precision multi-band GNSS RTK module for centimeter-level positioning, UART/SPI/I2C to ESP32-S2, external antenna via U.FL, 3.3V supply, low power modes."

Found 60 results.

Searching: "CC1310 module. Purpose: Sub-GHz 915 MHz transceiver module for FSK/OOK links; UART/SPI; low power; long range."

Creating search plan for: "RFM95W-915S2. Purpose: 915 MHz LoRa module for correction data link; SPI to MCU; U.FL; lower data rate but robust."

Searching: "undefined"

Found 77 results.

Searching: "RFM95W-915S2. Purpose: 915 MHz LoRa module for correction data link; SPI to MCU; U.FL; lower data rate but robust."

Completed 9 component searches.

Below are proven component options to add RTK GNSS and a 900 MHz correction-link to your design. I’ve prioritized modules that are easy to integrate with your ESP32-S2 and have wide ecosystem support.

RTK GNSS modules (centimeter-level)

Table

Part	Notes	Flux link	Datasheet
ZED-F9P-00B	Dual-band RTK GNSS, industry standard, multiple UARTs, robust toolchain; external antenna via U.FL/connector on carrier	ZED-F9P-00B	Datasheet
NEO-F9P-15B	Compact u-blox multi-band RTK GNSS module; similar capability in smaller footprint	NEO-F9P-15B	N/A

900 MHz telemetry modules for RTK corrections

Table

Part	Notes	Flux link	Datasheet
XBP9X-DMUS-001	Digi XBee-PRO 900HP family; UART, U.FL; very mature AT/API stack; excellent for point-to-point RTK corrections	XBee-PRO 900HP	Datasheet
RFM95W-915S2	915 MHz LoRa module; robust long-range link; lower throughput but often sufficient for RTCM streams	RFM95W-915S2	Datasheet
WLR089U0-I/RM	Microchip LoRa module (863–928 MHz) with U.FL; LoRaWAN capable; can be used for P2P correction links	WLR089U0-I/RM	Datasheet
A110LR09C00GM	Proprietary 900 MHz FSK module with U.FL; simple UART/SPI integration; good range in 902–928 MHz ISM	A110LR09C00GM	Datasheet

Recommendations

Easiest path: ZED-F9P-00B + XBP9X-DMUS-001. Both are UART-friendly. XBee handles a continuous RTCM stream reliably at long range in 902–928 MHz ISM.
Low-power/robust link: ZED-F9P-00B + RFM95W-915S2. Throughput depends on LoRa settings; suitable for modest RTCM rates with proper spreading factor/bandwidth.
Compact RTK: NEO-F9P-15B when PCB space is tight.

Integration notes

Interfaces: Route one dedicated UART from ESP32-S2 to the RTK module (NMEA/UBX + RTCM), and a second UART (or SPI if chosen) to the 900 MHz radio.
Antennas: Use separate GNSS and 900 MHz antennas with good isolation and clear ground keepouts. Place GNSS as far from 900 MHz PA and LTE as practical.
Coexistence and decoupling: Keep RF modules on board edges, add solid ground stitching vias along RF boundaries, and follow each module’s layout guide. Add downstream ceramic decoupling near switching/noisy loads to reduce EMI coupling.
Regulatory: Confirm your region (e.g., 902–928 MHz) and set radio parameters accordingly.

A couple of quick questions to finalize the pick:

What region/band will you operate in (915 MHz ISM in NA, 868 MHz in EU, etc.)?
Do you prefer a UART-based radio link (XBee) or SPI-based (LoRa) for corrections?
Any hard constraints on PCB area or module height?

Once you choose the RTK + 900 MHz pair, I can add them to your schematic.

Operating region

Prefer SPI link

Compact RTK choice

Add parts to schematic

RF keepout guidance

125 days

Ready.

ESP1

LORA_DIO1

+3V3

LORA_CS

EN_LDO_2

LORA_MISO

LORA_RST

VBAT

ESP_RX

+3V3

BAT

ESP_EN

LORA_MOSI

+3V3

ESP_EN

Capacitance

22p F

ESP_TX

GPS_RXD

GPS_TXD

C14

Capacitance

22p F

LORA_DIO2

ESP_OI0

GPS_SCL

ESP_OI0

VDD

C10

Capacitance

10u F

+3V3

Capacitance

0.1u F

Resistance

1M Ω

GPS_RESET

GPS_RXD

GPS_VBAT

Resistance

1k Ω

R21

Resistance

10k Ω

LORA_INT

ESP_EN

R22

Resistance

1M Ω

GPS_PPS

VDD

GPS_VBAT

BAT1

ESP_TX

C13

Capacitance

0.1u F

BAT_LEVEL

ESP_RX

EN_LDO_2

Capacitance

0.1u F

Capacitance

10u F

GPS_SDA

GPS_TXD

Inductance

47n H

VDD

VBAT

Capacitance

10u F

BAT_LEVEL

GPS_PPS

VBAT

LORA_SCK

VDD

GPS_RESET

VBAT

LED1

Reviews

Electrical Rule Checks

Duplicate Designators

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No-Connect Violation

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Pin-to-Pin Conflicts

Reports incompatible pin connections on the same net based on electrical pin types.

Shorted Components

Reports any 2-pin component with both pins connected to the same net.

Missing Power • 1

	Pin	Net
	U2:VBAT	Net 39

Reports power input pins that are not connected to a power source.

Single Pin Nets

Reports nets that have only one pin connected.

Missing Designator

Reports components without a designator.

Design Rule Checks

Overlapping Copper

Reports copper elements that are shorting.

Invalid Layer

Reports nodes that are assigned to a layer that doesn't exist in the layout stackup.

Component Overrides • 27

	Designator	Ruleset
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
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	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rules for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rules for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rules for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊

Reports components that have been modified using the "!important" flag.

Airwires

Reports missing routed traces between pads in a net.

Layers with Multiple Fills

Reports layers that have multiple copper fills of different nets. Make sure the Connected Layers rule value of nets with fills is valid.

Floating Copper

Detect any via, trace or copper fill island that is not connected to any net.

Protected Intrusions

Reports intrusions from objects of other nets into polygons or fills that have the Protected layout rule applied.

Missing Footprints

Reports components that need a footprint but don't have one.

Manufacturing

Manufacturer Part Number • 19

	Designator	MPN
	C1	None
	C2	None
	C3	None
	C4	None
	C6	None
	C8	None
	C9	None
	C10	None
	C13	None
	C14	None
	C15	None
	J1	None
	L1	None
	LED1	None
	R3	None
	R4	None
	R5	None
	R21	None
	R22	None

Reports components that have no manufacturer part number.

Parts Available

Beta

Checks that all components are available from distributors.

System Checks

Auto-Layout

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Reports issues with Auto-Layout if Flux cannot route something or must ignore a configuration.

Passive Components

Resistor Power Rating

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Checks that the power traveling across a given resistor is under its rating with 50% headroom.

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Pull Up/Pull Down Presence

Beta

Checks that IC pins that require pull up or pull down resistors have them.

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Capacitor Voltage Rating

Beta

Checks that capacitors have appropriate voltage ratings to prevent overheating and ensure reliable circuit operation.

Ground
A common return path for electric current. Commonly known as ground.
jharwinbarrozo
20.5M
Net Portal
Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
jharwinbarrozo
43.0M
Power Net Portal
Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #power
jharwinbarrozo
11.4M
Generic Resistor
A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibrary
jharwinbarrozo
1.5M
Generic Capacitor
A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF 10pF 100pF 1000pF 0.01uF 0.1uF 1.0uF 10uF 100uF 1000uF 10,000uF 1.1pF 11pF 110pF 1100pF 1.2pF 12pF 120pF 1200pF 1.3pF 13pF 130pF 1300pF 1.5pF 15pF 150pF 1500pF 0.015uF 0.15uF 1.5uF 15uF 150uF 1500uF 1.6pF 16pF 160pF 1600pF 1.8pF 18pF 180pF 1800pF 2.0pF 20pF 200pF 2000pF 2.2pF 22pF 20pF 2200pF 0.022uF 0.22uF 2.2uF 22uF 220uF 2200uF 2.4pF 24pF 240pF 2400pF 2.7pF 27pF 270pF 2700pF 3.0pF 30pF 300pF 3000pF 3.3pF 33pF 330pF 3300pF 0.033uF 0.33uF 3.3uF 33uF 330uF 3300uF 3.6pF 36pF 360pF 3600pF 3.9pF 39pF 390pF 3900pF 4.3pF 43pF 430pF 4300pF 4.7pF 47pF 470pF 4700pF 0.047uF 0.47uF 4.7uF 47uF 470uF 4700uF 5.1pF 51pF 510pF 5100pF 5.6pF 56pF 560pF 5600pF 6.2pF 62pF 620pF 6200pF 6.8pF 68pF 680pF 6800pF 0.068uF 0.68uF 6.8uF 68uF 680uF 6800uF 7.5pF 75pF 750pF 7500pF 8.2pF 82pF 820pF 8200pF 9.1pF 91pF 910pF 9100pF #generics #CommonPartsLibrary
jharwinbarrozo
1.5M
Generic Inductor
A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
jharwinbarrozo
15.3k
Terminal
An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
natarius
RMCF0805JT47K0
47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
jharwinbarrozo
1.2M
875105359001
10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
jharwinbarrozo
1.2M
CTL1206FYW1T
Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
jharwinbarrozo
1.1M

Inspect

LoRa Telemetry + GPS Template

Controls

Properties

License

https://creativecommons.org/licenses/by/4.0/

Availability & Pricing

Distributor		Qty 1
	Arrow	$1.68–$2.63
	Digi-Key	$2.74
	LCSC	$42.79
	Mouser	$25.56
	Verical	$2.31–$2.69

Assets

Thumbnail

LoRa Telemetry + GPS Template image.png

id=LoRa Telemetry + GPS Template image

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