Cellular Module Support

Last Updated on : 2026-04-29 02:38:37Copy for LLMView as MarkdownDownload PDF

This topic describes the support of cellular modules for various features.

Feature support

The table below lists the features supported by module modules.

Y: Supported
N: Not supported
O: External-based support

Feature	L511A L511C-Y6E L511E-Y6E	LE270CN-1D3W6	L511A-Y6 L511C-Y6 L511E-Y6 L511J-Y6	MA510	MC665EU MG661LA MG661EU MC661CN
Basic services	Y	Y	Y	Y	Y
Data point (DP) service	Y	Y	Y	Y	Y
MCU update	Y	Y	Y	Y	Y
Cellular service	Y	Y	Y	Y	Y
Weather service	Y	Y	N	Y	Y
Bluetooth Low Energy (LE) and LTE Cat.1 combo	Y	Y	N	Y	Y
Positioning service	O	O	O(GB600)	O	O
AGNSS service	Y	Y	Y	Y	Y
Wi-Fi Scan	Y	Y	N	Y	Y
Phone call service	N	N	N	N	N
SMS service	N	N	N	N	N
Battery service	N	N	N	N	N
Audio service	N	N	N	N	N
Bluetooth service	Y	N	N	N	N
Function control	Y	Y	Y	Y	Y
GPIO	Y	Y	N	Y	Y
ADC	Y	Y	N	Y	Y
Extended services	Y	Y	Y	Y	Y
AI audio services	N	Y(AI Version Support)	N	N	N
Local timing	Y	Y	N	Y	Y

Wake-up pin

When the cellular module has data to send to the MCU, the wake-up pin on the cellular module will emit a low level for 60 ms by default. The following table lists the default wake-up pin for different module models.

Module model	Default wake-up pin	UART pin	Description
MA510GL	Pin 61	UART3	When `UART3_TXD` is high, the device cannot start up. UART2 supports interfacing with Tuya’s GNSS module. UART1 supports AT command. In low power mode, pull down the Pin 41 more than 30ms to wake up the cellular module.
MC665EU	Pin 61	UART1 (RX18, TX19)	UART2 (RX39, TX40) supports interfacing with Tuya’s GNSS module.
MG661LA MG661EU MC661CN	Pin 20	MAIN_TXD (18), MAIN_RXD (17)	AUX_UART (RX28, TX29) supports interfacing with Tuya’s GNSS module.
L511 Seriers	Pin 20	MAIN_TXD (18), MAIN_RXD (17)	AUX_UART (RX28, TX29) supports interfacing with Tuya’s GNSS module. In low power mode, pull down the Pin 19 more than 30ms to wake up the cellular module.

Module GPIO and ADC

Module model	ADC	Reference voltage (mV)	Tuya GPIO	Pinout (physical pin indicated in parentheses)
MG665EU	0-1	VBAT, range (0 to VBAT)	2, 4, 6 (wake up the MCU), 8 to 11, 14 to 23, 29	2 (38), 4 (41), 8 (39), 9 (40), 10 (75), 11 (76), 14 (21), 15 (20), 16 (78), 17 (77), 18 (82), 19 (85), 20 (84), 21 (83), 22 (100), 23 (99), 29 (56)
MC661CN MG661LA AMG661EU	0-1	VBAT, range (0 to VBAT)	0, 1 (wake up the MCU), 2, 6 to 8, 10, 16 to 18, 20 to 22, 29 to 35, 42 to 43	0 (25), 2 (16), 6 (28), 7 (29), 8 (84), 10 (85), 16 (68), 17 (69), 18 (101), 20 (31), 21 (32), 22 (33), 29 (5), 30 (6), 31 (75), 32 (83), 33 (86), 34 (76), 35 (74), 42 (67), 43 (66)
L511A	0-1	0 to 1.2V	16, 19 (wake up the module in low power mode), 20 (wake up the MCU), 21-23, 25, 26, 30-33, 49-58, 78	/
L511C L511E L511C-Y6 L511A-Y6 L511E-Y6 L511J-Y6	0-1	0-1.2V	16, 19 (wake up the module in low power mode and cannot be used as GPIO), 20 (wake up the MCU), 21-23, 25	/

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