LilyGO TTGO T-Echo - NRF52840 - LoRa 868MHz - BME280 - GNSS - Black

Availability: Directly available from warehouse in Eindhoven
SKU: 005020

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€76.25

Ex Tax: €63.02

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Description
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The LilyGO T-Echo is a microcontroller based on an nRF52840. The T-Echo includes a LoRa chip, GNSS module, E-Paper display and battery. The module has a USB-C connector with which it can be programmed (e.g. via the Arduino IDE) and/or powered (USB-C cable not included). It also works with Meshtastic.

See the following page for more information: GitHub

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Tags: LilyGO TTGO T-Echo - NRF52840 - LoRa 868MHz - BME280 - GNSS - Black , LILYGO-K183 , With Bluetooth

Specifications

General
Brand	LilyGO TTGO
Manufacturer model/SKU	K183
Features	Battery charger Display Microcontroller (MCU) Temperature sensor Humidity sensor Battery protection circuit Enclosure RTC Pressure sensor (gas/liquid) Battery Programmable button(s)
General physical appearance
Main color	Black
Weight [g]	74
Dimension X [mm]	127 (including antenna)
Dimension Y [mm]	54
Dimension Z [mm]	25
Mounting options	Screw thread
Form factor	Module (general)
General electrical properties
Minimum supply voltage [V DC]	5
Maximum supply voltage [V DC]	5
Indication average current consumption [mA]	42
Indication (deep-)sleep current [μA]	250
MCU
Manufacturer	Nordic Semiconductor
Chip series	nRF52840
Maximum clock frequency [MHz]	64
Number of cores	1
Internal memory
SRAM [KB]	256
Flash memory [MB]	3
EEPROM type	Emulated
Communication
Hardware interface(s)	Native USB USB CDC
Number of IO-pins	0
USB to serial converter	Integrated into microcontroller
Wireless communication
Interface(s)	GNSS Bluetooth LoRa Zigbee RFID (Note: NFC and Zigbee currently only supported through the nRF5 SDK)
Bluetooth chip/SoC	nRF52840
Bluetooth version	5.0
Supported Bluetooth standard(s)	LE
Zigbee chip/SoC	nRF52840
Zigbee frequency [GHz]	2.4
GNSS chip/SoC	L76K
Supported GNSS systems	GPS Beidou GLONASS QZSS
Maximum GNSS position accuracy [m]	2.0
Maximum GNSS update rate [Hz]	5
LoRa chip/SoC	SX1262
LoRa frequency [MHz]	868
RFID chip/SoC	nRF52840
Display
Type	E-paper
Screen diagonal [inch]	1.54
Number of pixels long side	200
Number of pixels short side	200
Pixel colors	Black White
Maximum refresh rate [Hz]	0.5
Partial display refresh	Yes
Temperature sensor
Sensor (chip)	BME280
Minimum measuring range [°C]	-40
Maximum measuring range [°C]	85
Smallest resolution [°C]	0.01
Accuracy [±°C]	1.0
Humidity sensor
Sensor (chip)	BME280
Minimum measuring range [% R.H.]	0
Maximum measuring range [% R.H.]	100
Smallest resolution [%R.H.]	0.008
Accuracy [±%]	3.0
Pressure sensor
Sensor (chip)	BME280
Suitable medium	Air
Minimum measuring range [hPa]	300
Maximum measuring range [hPa]	1100
Smallest resolution [hPa]	0.0018
Accuracy [±hPa]	1.0
RTC
RTC chip	PCF8563
Back-up battery/capacitor	Yes
Battery circuit
Battery charger chip/SoC	TP4054
Supported battery chemistry	Li-ion Li-Po
Maximum charging voltage [V]	4.2
Maximum charging current [mA]	500
Adjustable charging current	No
Protection circuit	Yes
Battery
Chemistry	Li-Po
Rechargeable	Yes
Capacity [mAh]	850
Connectors
Power supply connector(s)	USB-C female
IO-connector(s)	USB-C female
Wi-Fi/Bluetooth antenna connector	Built-in antenna
Zigbee/Thread antenna connector	Built-in antenna
LoRa antenna connector	SMA female
GNSS antenna connector	Built-in antenna
RFID antenna connector	Built-in antenna
Enclosure
Material	ABS
Package contents
Package contents	1x T-Echo with BME280 1x USB-A to USB-C Cable 1x LoRa 868MHz Antenna