Difference between revisions of "Hardware: Hive Interface Board 4"
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==Features== | ==Features== | ||
*AD7124 24 bit ADC with 8 differential inputs | *AD7124 24 bit ADC with 8 differential inputs | ||
| − | *Instrumentation Amplifiers for load cells | + | |
| + | Supports 4 load cells or four scales with 4 loads cells in parallel. | ||
| + | |||
| + | *Instrumentation Amplifiers for load cells. | ||
| + | |||
| + | Maybe not necessary. Preliminary tests using the EVAL-AD7124-8 board are able to resolve to .001 lbs (.45 g) without external aplifiers. | ||
| + | |||
*Bluetooth Low Energy (BLE) support using a Nordic nRF52 | *Bluetooth Low Energy (BLE) support using a Nordic nRF52 | ||
*BMD301 32 bit ARM processor with GPIO lines and eight 16 bit ADC inputs | *BMD301 32 bit ARM processor with GPIO lines and eight 16 bit ADC inputs | ||
*40 pin header plug into a Pi | *40 pin header plug into a Pi | ||
| + | |||
| + | |||
*two coin cells to power the BMD301 | *two coin cells to power the BMD301 | ||
Revision as of 04:24, 25 November 2017
Summary
Can operate with the Pi or as a standalone Bluetooth Low Energy (BLE) device. Replaces the HX711 single channel ADC with an 8 channel.
Features
- AD7124 24 bit ADC with 8 differential inputs
Supports 4 load cells or four scales with 4 loads cells in parallel.
- Instrumentation Amplifiers for load cells.
Maybe not necessary. Preliminary tests using the EVAL-AD7124-8 board are able to resolve to .001 lbs (.45 g) without external aplifiers.
- Bluetooth Low Energy (BLE) support using a Nordic nRF52
- BMD301 32 bit ARM processor with GPIO lines and eight 16 bit ADC inputs
- 40 pin header plug into a Pi
- two coin cells to power the BMD301
- BMD301 (Nordic nRF52) can be programmed via the Pi.
Data Sheets
http://www.analog.com/en/design-center/design-tools-and-calculators/converter-tools.html
