BlueNRG-1 bluetooth without hassle

Designing and impendance matching RF-related circuitry is an art of its own. STMicroelectronics’s SPBTLE-1S combines a Bluetooth 4.2 radio module with a Cortex-M0 processor intended to handle RF communications.

A look at the block diagram confirms that the module is, by and large, an SoC in a box. Thanks to STM pre-soldering it all onto a planar, certification hassles are avoided (in the USA) or mitigated (in Europe).

The SPBTLE-1S contains all an IoT developer dreams of at night

Interaction with external hardware can be accomplished via a full complement of GPIO ports, two ADC channels, one SPI and two I2C interfaces. The module, furthermore, has the capability to work as a dedicated Bluetooth 4.2 radio chip being controlled by a seperate microcontroller.

ST Microelectronics prides itself on the module being able to run from a single coin cell or a pair of AAA batteries – any input power ranging from 1-.7V to 3.6V is acceptable. This, sadly, is a problem for hosted mode – interfacing the module with a run of the mill 5V microcontroller requires level switching hardware. Power consumption in active mode is 1.9mA, with a 0.9 Microampere sleep mode also available.

Integrating the module is relatively simple: STMicroelectronics picked a form factor similar to the one used by the various ESP32 modules. This means that even non-sophisticated pick and place houses should not have trouble handling the part – if land geometry is suitable, hand soldering also is possible due to the pads being exposed from both sides.

The SPBTLE-1S can be soldered by hand

Unlike some other products from STM, the SPBTLE-1S does not stand alone. It, instead, can use almost all example code provided for the BlueNRG platform – getting started with it is as easy as selecting a C program’s skeleton which fits your needs.

Recent Articles
Types of electronic circuits discussed
There are many other interesting elements to electronic and circuits is top on my list. While this topic can quite complicated, it is nevertheless possible to... Read Article
New Renesas Industrial Ethernet Module R-IN32M3 Solution Kit
Register to win a solution kit! The R-IN32M3 Industrial Ethernet Module is a ready-to-use, certified hardware and software solution based on Renesas technology and quality standards.... Read Article
The Hitchhiker’s Guide to PCB Design
Want to create a solid, manufacturable PCB the first time? Get the only eBook you will ever need to upgrade your PCB knowledge and launch your... Read Article
Secure your supply with Future Electronics
Find what you need faster Hundreds of thousands of components. Three strategically-located Distribution Centers. ONE global IT infrastructure. Find what you need faster with access anywhere,... Read Article
Save 10% on Orders $500 or More
Promo code is valid for saving 10% on orders of $500 or more. Offer does not apply to products from Adafruit, DEEPWAVE DIGITAL, FTDI Chip, NVIDIA,... Read Article
Create Smaller, More Power-Efficient USB-C and USB-C Power Delivery Designs
Maxim Integrated’s extensive portfolio of ICs for USB-C and USB-C Power Delivery designs provide high levels of integration and flexibility that engineers need to create compact,... Read Article