Using/Orange Pi

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Single-board computers Orange Pi Begin: 04 (April) 2017 Participants: Roman Savochenko Description: "Orange Pi" is a single-board computers related to Raspberry Pi ones but much cheaper sometimes. Materials: http://ftp.oscada.org/OpenSCADA/Devices/OrangePi Features: Positive: small size, cost about 7$, nearly of RPi3 performance, minimal power consumption about 0.9W, abundant for IO, Audio Input. Negative: slower compare to RPi for WLAN, GPIO (up to four times). State of the support: - observe for decreasing the power consumption in relation with Pine Phone.

Parameters:	Orange Pi Zero
Hardware platform:	Cortex-A7 (ARMv7)
Central processor:	H2 Cortex-A7 H.265/HEVC 1080P, 1.2GHz, 4 Cores
Memory:	256MB/512MB DDR3 SDRAM
Solid memory:	µSD, optional SPI NOR Flash on board
Video subsystem:	Mali400MP2 GPU @600MHz
Audio subsystem:	integrated to CPU
Electrical power:	DC 5V DC-IN via µUSB or pin headers or PoE
Interfaces:	3xUSB Host, 1xUSB OTG, Ethernet 10/100M POE, WiFi 802.11 b/g/n, TV out, microphone, stereo line-out, 3xUART, 2xSPI, 2xI2C
Weight:	26 g.
Size:	48 × 46 × 17 mm

For working with the board there firstly were used a special distributive Armbian "Jessie". As builds of OpenSCADA there used the packages repository, mostly for the generic architecture ARMHF for which performs regular building of OpenSCADA by the Automatic Builder of OpenSCADA into the cross-compiling environment.

The board provides many low level buses (3xUART, 2xSPI, 2xI2C) despite its small size, and restricted GPIO in 16 pins which mostly used by the buses. The buses are standard ones but GPIO is a specific one and for that there was implemented special support in the available module DAQ.GPIO making it more unified one.

04.01.7531/04.03.2023: Updated to Armbian 23.02 Bullseye. The modern firmware switches the CPU frequency to 1.008 GHz by default and due to decreasing the CPU powering down to 1.2 V. So, to return the powering we need to append the variable "overlays" by the value "cpu-clock-1.3GHz-1.3v" in the file "/boot/armbianEnv.txt", and that won't raise the minimum power consumption.

1 GPIO

2x13 Header
1	3.3V	2	5V
3	TWI0_SDA / PA12 / GPIO12	4	5V
5	TWI0_SCK / PA11 / GPIO11	6	GND
7	PWM1 / PA06 / GPIO6	8	UART1_TX / PG06 / GPIO198
9	GND	10	UART1_RX / PG07 / GPIO199
11	UART2_RX / PA01 / GPIO1	12	SIM_CLK/PA_EINT7 / PA07 / GPIO7
13	UART2_TX / PA00 / GPIO0	14	GND
15	UART2_CTS / PA03 / GPIO3	16	TWI1-SDA / PA19 / GPIO19
17	3.3V	18	TWI1-SCK / PA18 / GPIO18
19	SPI1_MOSI / PA15 / GPIO15	20	GND
21	SPI1_MISO / PA16 / GPIO16	22	UART2_RTS / PA02 / GPIO2
23	SPI1_CLK / PA14 / GPIO14	24	SPI1_CS / PA13 / GPIO13
25	GND	26	SIM_DET/PA_EINT10 / PA10 / GPIO10

1x13 Header
1	5V
2	GND
3	USB-DM2
4	USB-DP2
5	USB-DM3
6	USB-DP3
7	LINEOUTR
8	LINEOUTL
9	TV-OUT
10	MIC-BIAS
11	MIC1P
12	MIC1N
13	CIR-RX

LEDs
Name	GPIO
Red LED	PA17
Green LED	PL10

2 Links

• Xunlong Orange Pi Zero
• Armbian