What AC power adapter will plug right into this?

The recommended external power source for this board is a Li-Po Single Cell, 3.7V, 700mAh Minimum

What are the 3 connectors on the board? What wire do I need in order to program this thing?

The MKR 1010 is programmed using the mini usb port. The jst connector is for li-po battery external power & the 5 pin connector is for I2C access. Hope this helps.

What is the proper connector to power this thing with a battery?

The connector on the side you would plug a battery into is a JST-PH style connector.

Without eeprom, how to store the program (sketch)? after a power off and restart, data on ram is lost.

The sketch will persist between reboots, but any volatile data in the RAM will be lost unless you include the EEPROM emulator package. The emulator will write to the EEPROM in which the program is stored at the cost of device life. The process significantly reduces the number of times you can write a new program to the Arduino.

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Description

🚀 Power your IoT dreams with the ultimate WiFi + BLE prototyping board!

COMPACT LIGHTWEIGHT - At just 18g and 7x5 cm, it fits perfectly into sleek, space-conscious designs.
ARM CORTEX PERFORMANCE - Harness the power of a 32-bit SAMD21 processor for smooth, efficient processing in your IoT applications.
BATTERY LIFE MAXIMIZER - Low power mode extends your device uptime—perfect for on-the-go innovation without constant recharging.
DUAL WIRELESS POWERHOUSE - Combine WiFi and BLE for versatile, reliable device communication in any environment.
SEAMLESS IO T PROTOTYPING - Effortlessly build WiFi-enabled projects with Arduino MKR 1010’s plug-and-play connectivity.

The Arduino ABX00023 MKR WIFI 1010 is a compact, lightweight development board featuring a low power ARM Cortex 32-bit SAMD21 processor. It offers dual WiFi and BLE connectivity, optimized for low power consumption to extend battery life, making it the ideal entry point for professional-grade IoT and pico-network applications.

Specifications

Brand	Arduino
Manufacturer	Arduino S.r.l.
Country of Origin	China
Model number	ABX00023
Colour	Multi
Number of Memory Sticks	1
Item Weight	18 g
Product Dimensions	7 x 5 x 2 cm; 18 g
Item model number	ABX00023
Item Height	2 Centimeters
Item Width	5 Centimeters
Auto Focus Included	No
Processor brand	ARM
Processor Type	core_m
Processor Socket Type	BGA
Number of processors	1
Memory Storage Capacity	0.03 GB
Memory Technology	SRAM
Memory clock speed	48 MHz
Graphics Card Interface	Integrated
Wireless Standard	802.11b
Number of Ports/Connectors	1
Number of USB Ports	1
Connectivity Technology	Wi-Fi
Compatible Processors	Microchip SAMD21, SAMD21G, SAMD21J, etc.
Included Components	1 x Original MKR
Are batteries included?	No
Hardware Interface Type	USB
External Certification	Não aplicável

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