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HX711 - amplifier for a strainer beam - SparkFun SEN-13879
Operational amplifier is designed to handle strain beams. The system is supplied with the voltage from 2.7 V to 5.0 V, communicates via a two-wire bus: the data line and a clock line.
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Description
Operational amplifier is designed to handle strain beams. The system is supplied with the voltage from 2.7 V to 5.0 V, communicates via a two-wire system bus: the data line and a clock line.
Botland is an official distributor of modules and accessories from SparkFun Electronics. This well known American maker provides a complete base for electronics projects. Our range holds original SparkFun Electronics products only.
Connection
The strain beams are supported through the so-called Wheatstone bridge, i.e. wires connected in the following way:
- Red (RED)- positive excitation or VCC (power)
- Black (BLK)- negative excitation or GND (ground)
- White (WHT)- positive amplification, a positive signal or a positive output
- Green (GRN)- the negative amplification, the signal is negative or the output is negative
- Yellow (YLW)- grounding, optional input enables to reduce electromagnetic interference
Connection
- Red (RED): - positive excitation or VCC (power)
- Black (BLK): - negative excitation or GND (ground)
- White (WHT): - positive amplification, a positive signal or a positive output
- Green (GRN): - the negative amplification, the signal is negative or the output is negative
- Yellow (YLW): - grounding, optional input enables to reduce electromagnetic interference
For communication with the microcontroller, e.g. Arduino board, the system uses two lines: CLK and DAT.
| Pin | Description |
|---|---|
| VCC | Supply voltage from 2.7 V to 5.0 V. |
| DATE | Data line of communication bus. |
| CLK | Clock lineof communication bus. |
| GND | The mass of the system. |
RED WHT UAH YLW | Line to connect the strain beam. The description is above the picture. |
The product is compatible with Arduino |
Specification
- Supply voltage: from 2.7 V to 5.0 V
- Current consumption: 1.5 mA
- Selectable sampling rates: 10 sps to 80 sps
- The system does not change the control signal
- Leads: holes for connectorsgoldpin - 2.54 mm(strip purchased separately)
- Module dimensions: 31 x 23 mm
Useful links
| Name | Value |
|---|---|
| Width | 5 cm |
| Height | 0.5 cm |
| Depth | 8.5 cm |
| Weight | 0.003 kg |
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The full delivery terms are on the page Delivery and payment.
30 days to return, without giving a reason
If the product does not meet your expectations, you have 30 days from receiving the parcel to withdraw from the contract. The product only has to be complete. The right of return belongs to consumers (a purchase unrelated to business activity).
Complaints
If the product turns out to be faulty, you can make a claim under the guarantee or the statutory warranty. We handle claims without delay, at the latest within 14 working days of receiving the report together with the goods.
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Instructions and documents
GPSR data
Product information
This product is a component intended for further assembly or prototyping. It is not a finished product within the meaning of the product safety regulations.
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