What kind of battery can be connected directly to this board?

the intention is to use a one cell lipo battery

Will this board work with TTN V3?

Yes，this board can work with TTN V3.

Can a LDO regulator output go to the 3.3 volt pin?

According to the schematic, the unit uses a ME6211 LDO between the 5v and 3.3v, so I say yes, you can. Looks like you won't be able to charge the battery, though. FYI, there is a trick to use the SD card as well. You need to manually deselect the LoRa chip (18 HIGH) then manually select the card reader (13 LOW). Seems you can't use both at the same time. At least the one I got.

Can both the board sma and u.fl connector used for the antenna?

Both SMA and U.FlL antennas are suitable for this product, but they cannot be used at the same time. By default, this product uses SMA antenna. If you want to use U.L external antenna, you need to change the antenna resistance.

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LoRa32 433Mhz ESP32 Development Board OLED 0.96 Inch SD Card BLE WiFi TTGO Module

Product ID: 539307583

Details

Brand
LILYGO
CPU Model
MediaTek
Connectivity Technology
Bluetooth
Memory Storage Capacity
4 MB
Model Name
RS1833

💾Onboard SD card storage

📡433MHz LoRa long-range wireless

🔋Integrated TP4054 power management

$71.02

Duties & taxes included

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Sold byAmazon EcuadorDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Elevate your IoT game with the ultimate all-in-one LoRa32 dev board!

COMPACT OLED DISPLAY - 0.96-inch screen for real-time monitoring and intuitive control at a glance.
ROBUST POWER CONTROL - Upgraded power switch and TP4054 charging circuit for reliable, hassle-free operation.
OPEN SOURCE INNOVATION - Backed by active GitHub community for continuous upgrades and custom firmware.
VERSATILE DATA HANDLING - Store locally on SD card or stream effortlessly via MQTT, LoRaWAN, or SPI interfaces.
SEAMLESS CONNECTIVITY EVERYWHERE - Dual-mode BLE & WiFi plus 433MHz LoRa for ultra-long-range data transmission.

The LILYGO LoRa32 433MHz ESP32 Development Board is a compact, feature-rich module combining Bluetooth, WiFi, and long-range LoRa communication. It includes a crisp 0.96-inch OLED display, onboard SD card storage, and advanced power management with TP4054 charging and an enhanced power switch. Ideal for professionals and makers seeking versatile, reliable IoT prototyping with open-source support.

Specifications

ASIN	B0B45L398K
Best Sellers Rank	#502 in Single Board Computers (Computers & Accessories)
Brand	LILYGO
Built-In Media	Blu-ray
CPU Model	MediaTek MT8125
Compatible Devices	Computers, Smartphones, Microcontrollers
Connectivity Technology	Bluetooth, Wi-Fi
Customer Reviews	4.4 4.4 out of 5 stars (164)
Global Trade Identification Number	16971336331063
Item Dimensions L x W x H	2.54"L x 1.06"W x 0.51"H
Manufacturer	LILYGO
Memory Storage Capacity	4 MB
Model Name	RS1833
Operating System	Linux
Processor Brand	Espressif
Processor Count	1
RAM Memory Technology	PSRAM
Total Usb Ports	1
Wireless Compability	Bluetooth

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