Difference between revisions of "Hardware: Hive Interface Board 5"
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[[File:NRF52 AD7124 breadboard c.jpg|thumb|right|600px|Analog Devices AD7124-8 Eval Board connected to the Nordic nRF52840 Product Development Kit]] | [[File:NRF52 AD7124 breadboard c.jpg|thumb|right|600px|Analog Devices AD7124-8 Eval Board connected to the Nordic nRF52840 Product Development Kit]] | ||
| + | |||
| + | A different approach from version 0.4 was taken. Evaluation boards and Product Development Kits (PDK) were purchased. | ||
| + | * | ||
| + | * | ||
| + | |||
| + | ==Goal== | ||
| + | |||
| + | Create a low power, battery operated, wireless scale with extended communcation range using Bluetooth Low Energy version 5 (BLE5) with a high performance Analog to Digital Converter (ADC) | ||
| + | |||
| + | ==Features== | ||
| + | *AD7124-8 24 bit ADC with 8 differential inputs | ||
| + | |||
| + | Provides independent channels for each of the 4 load cells or four scales with 4 loads cells in parallel. | ||
| + | |||
| + | *Bluetooth Low Energy (BLE) support | ||
| + | |||
| + | Uses the Nordic nRF52 32 bit ARM processor with GPIO lines and eight 16 bit ADC inputs. | ||
| + | |||
| + | |||
| + | *40 pin header plug into a Pi. | ||
| + | |||
| + | The board can run from the Pi without the BMD301 as a replacement for the HX711 | ||
| + | |||
| + | |||
| + | |||
| + | ==Data Sheets== | ||
| + | |||
| + | [[Media:AD7124-8.pdf|AD7124-8 (pdf)]] | ||
| + | |||
| + | |||
| + | http://www.analog.com/en/design-center/design-tools-and-calculators/converter-tools.html | ||
Revision as of 06:00, 31 January 2018
After a failed attempt at Hive Interface board version 0.4, work has begun on version 0.5.
A different approach from version 0.4 was taken. Evaluation boards and Product Development Kits (PDK) were purchased.
Goal
Create a low power, battery operated, wireless scale with extended communcation range using Bluetooth Low Energy version 5 (BLE5) with a high performance Analog to Digital Converter (ADC)
Features
- AD7124-8 24 bit ADC with 8 differential inputs
Provides independent channels for each of the 4 load cells or four scales with 4 loads cells in parallel.
- Bluetooth Low Energy (BLE) support
Uses the Nordic nRF52 32 bit ARM processor with GPIO lines and eight 16 bit ADC inputs.
- 40 pin header plug into a Pi.
The board can run from the Pi without the BMD301 as a replacement for the HX711
Data Sheets
http://www.analog.com/en/design-center/design-tools-and-calculators/converter-tools.html
