Datasheet

Overview

The Anthilla Controller Board is an industrial-grade flexible controller for IoT projects

Features

• Extended range temperature
• Input power: 7V - 28V. The board can be powered by just powering 5V area.
• 4 Digital inputs
• 6 Open collector outputs
• 4 Analog inputs (16 bit ADC) or 4-20mA inputs switchable (multiplexed)
• RS485 communication
• Real time clock
• Rechargeable LiPo battery
• I2C and SPI communication
• USB-C port

Applications

A non-exhaustive list of applications: remote lamp monitoring and control, water automation.

Block Diagram

To be completed

Connections

The board has four connectors

Board Designator	Connector type	Number of pins	Function
J1	USB-C	12	Communications & Power
J2	Header	5	Communications
J3	Pin header	40	I/O
J5	Header	3	Input power
J6	Header	4	Battery

Pin description

J1

Pin number	Pin name	Description
A4/B9	VBUS	Input power from USB
B4/A9	VBUS	Input power from USB
A5	CC1	Not Connected (NC)
B5	CC2	Not Connected (NC)
A7	D-	Negative branch of the USB Differential Pair
B7	D-	Negative branch of the USB Differential Pair
A6	D+	Positive branch of the USB Differential Pair
B6	D+	Positive branch of the USB Differential Pair
A8	SBU1
B8	SBU2
A1/B12	GND
B1/A12	GND
S1	SHIELD
S2	SHIELD
S3	SHIELD
S4	SHIELD

J2 - Communications

Pin number	Pin name	Description
1	RS-485_A	Positive branch of the differential pair for the RS-485 communication bus
2	RS-485_B	Negative branch of the differential pair for the RS-485 communication bus
3	RX	Reception for the serial communication (UART)
4	GND	Ground
5	TX	Transmission for the serial communication (UART)

J3 - I/O

J6 - Battery

Pin number	Pin name	Description	//////////////////	Pin number	Pin name	Description
1	+5	Battery input power		21	DI1	Digital Input
2	+3V3	Ground		22	MOSI	SPI Master Output System Input
3	+5	Battery input power		23	DI2	Digital Input
4	SDA	I2C Data		24	SCK	I2C Clock
5	GND	Ground		25	GPIO3	General Purpose Input/Output
6	SCL	I2C Clock		26	GND	Ground
7	TX0	UART Transmission		27	COM	Open Collector Outputs Voltage
8	GND	Ground		28	O1	Open Collector Output
9	RX0	UART Reception		29	GND	Ground
10	GND	Ground		30	O2	Open Collector Output
11	GPIO1	General Purpose Input/Output		31	O3	Open Collector Output
12	RESET	Reset		32	O4	Open Collector Output
13	GND	Ground		33	GND	Ground
14	GPIO0	General Purpose Input/Output		34	O5	Open Collector Output
15	GPIO2	General Purpose Input/Output		35	O6	Open Collector Output
16	DI3	Digital Input		36	AIN4	Analog Input
17	DI4	Digital Input		37	AIN1	Analog Input
18	+3V3	+3.3V power		38	AIN3	Analog Input
19	GND	Ground		39	AIN2	Analog Input
20	MOSI	SPI Master Output System Output		40	GND	Ground

J5 - Input Power

Pin number	Pin name	Description
1	VDD	Main input power
2	GND	Ground
3	+5V_IN	+5V Input power

J6 - Battery

Pin number	Pin name	Description
1	+BATT	Battery input power
2	GND	Ground

Specifications

Electrical Specifications

Power

The board can be divided into two power zones:

• Low-voltage: everything supplied by 5V and 3.3V.

• Main-voltage: the power supply, in charge of generating the low-voltage levels from an external power supply. The board AnthC can be supplied in different ways:

• Main power supply A voltage between 7V and 28V through the connector J5 can supply the board.

• USB Power A USB connection the low-voltage area of the board.

• Battery The board can be powered with a Single Cell LiPo battery of 3.7 V

Battery Charging

The battery will be charged anytime the 5V area is powered. Then, it can be charged through the USB connector or through the main power connection. The battery voltage level can be measured on the pin IO15 of the microcontroller.

Hardware details

Microcontroller

The processor is a ESP32-S3-WROOM module. ESP32-S3 series of SoCs embedded, Xtensa® dual-core 32-bit LX7 microprocessor, up to 240 MHz

• 384 KB ROM
• 512 KB SRAM
• 16 KB SRAM in RTC
• Up to 8 MB PSRAM

Communications

The board has I2C, SPI, UART (through USB) and RS-485 communication buses. Also, it supports Wi-Fi and Bluetooth communications, provided by the ESP32-S3 module.

Wifi 802.11 b/g/n

• Bit rate: 802.11n up to 150 Mbps
• A-MPDU and A-MSDU aggregation
• 0.4 μs guard interval support
• Center frequency range of operating channel: 2412 ~ 2484 MHz

Bluetooth

• Bluetooth LE: Bluetooth 5, Bluetooth mesh
• Speed: 125 Kbps, 500 Kbps, 1 Mbps, 2 Mbps
• Advertising extensions
• Multiple advertisement sets
• Channel selection algorithm #2

Certifications

Open Hardware

The board M2-R3 got the Open Source Hardware Certification under the UID IT000013

https://certification.oshwa.org/it000013.html

The board M2-R4 got the Open Source Hardware Certification under the UID IT000014

https://certification.oshwa.org/it000014.html