https://github.com/ldab/ble-node-u-blox

u-blox NINA-B3 BLE node, based on nRF52840 and SHTC3
https://github.com/ldab/ble-node-u-blox

ble bluetooth cr2032 i2c iot nina-b3 nrf52840 shtc3 u-blox ublox

Last synced: about 1 year ago
JSON representation

u-blox NINA-B3 BLE node, based on nRF52840 and SHTC3

• Host: GitHub
• URL: https://github.com/ldab/ble-node-u-blox
• Owner: ldab
• License: mit
• Created: 2020-01-23T08:21:33.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2023-07-31T13:12:09.000Z (almost 3 years ago)
• Last Synced: 2025-05-02T08:55:46.654Z (about 1 year ago)
• Topics: ble, bluetooth, cr2032, i2c, iot, nina-b3, nrf52840, shtc3, u-blox, ublox
• Language: C
• Size: 2.56 MB
• Stars: 2
• Watchers: 1
• Forks: 3
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# BLE-node-u-blox

u-blox NINA-B3 BLE node, based on nRF52840 and SHTC3

[![GitHub version](https://img.shields.io/github/release/ldab/BLE-node-u-blox.svg)](https://github.com/ldab/BLE-node-u-blox/releases/latest)

[![License: MIT](https://img.shields.io/badge/License-MIT-green.svg)](https://github.com/ldab/BLE-node-u-blox/blob/master/LICENSE)

[![GitHub last commit](https://img.shields.io/github/last-commit/ldab/BLE-node-u-blox.svg?style=social)](https://github.com/ldab/BLE-node-u-blox)

![](./pics/BLE-node.png)

## TODO

- [ ] 3D enclosure

## Energy Budget

* ?? mA active current;

* Wakes every hour;

* 17uA Sleep current;

* CR2032 ~235mAh;

**Battery life =**

 

## Nordic SDK

* This is based on nRF5_SDK_16.0.0_98a08e2, get yours here: https://www.nordicsemi.com/Software-and-tools/Software/nRF5-SDK/Download

## Cloud Gateway

* Raspberry Pi + Grafana + InfluxDB;

https://github.com/ldab/BLE-Weather-Station-Cloud-Gateway

## Running the code locally

1. Clone this repo to a local folder ```> git clone https://github.com/ldab/BLE-node-u-blox```

2. Point the `$(SDK)` @`./code/ninab3/blank/ses/libuarte_pca10056.emProject` to where you have installed Nordic SDK, for example `C:\nRF\nRF5_SDK_16.0.0_98a08e2`

3. Like so: `macros="CMSIS_CONFIG_TOOL=C:/nRF/nRF5_SDK_16.0.0_98a08e2/external_tools/cmsisconfig/CMSIS_Configuration_Wizard.jar;SDK=C:/nRF/nRF5_SDK_16.0.0_98a08e2"`

4. Open the SEGGER Embedded Studio project file located in `./code/ninab3/blank/ses/libuarte_pca10056.emProject`

Ref. https://devzone.nordicsemi.com/f/nordic-q-a/44638/how-to-move-an-sdk-example-out-of-the-sdk-tree

## Code reminders

* BSP LEDs status https://infocenter.nordicsemi.com/index.jsp?topic=%2Fsdk_nrf5_v16.0.0%2Fexamples_bsp.html&anchor=examples_bsp_states

## SHTC3 Low Power mode tradeoff

 

## PCB

 

## Schematic

 

## BOM

[Bill of materials](./PCB/BLE-node.csv)

## Enclosure

 

## Kown issues, limintations

* .

## Final Thoughts or Improvements

* Better battery measurement to avoid current drain;

## Credits

* GitHub Shields and Badges created with [Shields.io](https://github.com/badges/shields/);