Latest BLE chip by Nordic Semiconductor on a breakout board
The nRF52832 is Nordic Semiconductor's latest multiprotocol radio System on Chip (SoC). It's half microcontroller,
with a list of features including 32 configurable I/O pins, SPI, I2C, UART, PWM, ADC's, 512kB flash, and 64kB RAM.
And it's half 2.4GHz multiprotocol radio, supporting Bluetooth Low Energy (BLE), ANT, and Nordic's proprietary 2.4GHz
ultra low-power wireless communication. It even features on-chip NFC tag support. SparkFun's nRF52832 Breakout provides
easy access to all of the chip's features. It breaks out all of the nRF52's I/O pins, provides a 32.768kHz RTC crystal,
a user-programmable button and LED, and a trace antenna to send and receive those 2.4GHz transmissions. Plus, to make the
chip as easy-to-flash as possible, the breakout comes pre-programmed with a serial bootloader. Arduino board definition
is available, so you can program it with the Arduino IDE.
Measuring and logging system for weight and temperature
The SparkFun OpenScale is a simple-to-use, open source solution for measuring weight and
temperature. It has the ability to read multiple types of load cells and offers a simple-to-use
serial menu to configure calibration value, sample rate, time stamp and units of precision. On
board the SparkFun OpenScale is the ATmega328P microcontroller, for addressing your communications
needs and transferring your data to a serial terminal or to a data logger such as the OpenLog, a
FT231 with mini USB, for USB to serial connection; the HX711, a 24-bit ADC for weigh scales; and the
TMP102, for recording the ambient temperature of your system.
To use the Raspberry Pi for measurement or control in the industry, 24V in-and outputs are necessary.
The Automation HAT is an expansion board with 3 relays, 3 analog measurement inputs, 3 digital inputs and
3 buffered outputs. All in- and outputs are suitable for 24V, have led’s for status display and are equipped
with robust screw terminals. The board communicates with the Raspberry Pi via the I2C interface, uses 11 GPIO
pins and has a Product ID EEPROM. For the board a Python library is available.
Sigfox is just like LoRa, a wireless technology for sending and receiving a small amount of data over
a long distance with low power. A range over 15 km is possible. Sigfox networks are being rolled-out in
Europe, but off course you can also build your own network. The features of Sigfox are the same to LoRa,
but the communication protocol is different. This module supports the Sigfox protocol. The SiPy can act
as a multi-bearer (Sigfox, WiFi and BLE) development platform and the Pymakr IDE for fast IoT application
development, easy programming in-field and extra resilience with network failover. With the latest Espressif
chipset the SiPy offers a perfect combination of power, usability and flexibility.