E19-433M20S2 SX1278 LoRa 433MHz SMD SPI Long-range Communicator Radio 100mW Stamp Hole Wireless Transceiver Module LoRa 433

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E19-433M20S2 SX1278 LoRa 433MHz SMD SPI Long-range Communicator Radio 100mW Stamp Hole Wireless Transceiver Module LoRa 433 RF Parameter Value Remark...

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E19-433M20S2 SX1278 LoRa 433MHz SMD SPI Long-range Communicator Radio 100mW Stamp Hole Wireless Transceiver Module LoRa 433


RF Parameter

Value

Remark

Working frequency

410-525Mhz

Default:  433MHz (32MHz oscillator)

Transmitting power

20 dBm

Max. Power (100mW)

Receiving sensitivity

-147 dBm

Air data rate: 0.3kbps

Air data rate

0.018k~37.5kbps

Default: 0.3kbps

Test distance

5000m

In open and clear air, with maximum power, 5dBi antenna gain, height of 2m,

air data rate: 0.3kbps


Hardware Parameter

Value

Remark

Size

15 * 15 mm


Antenna type

Stamp hole


Communication interface

SPI


Package

SMD



Electronic parameter

Min.

Typ.

Max.

Unit

Condition

Power supply

2.3

3.3

3.6

V


Communication level

1.8

3.3

3.6

V


Transmitting current

110

120

128

mA

20dBm(100mW)

Receiving current

13

14

15

mA


Sleep current

0.5

1.0

2.0

μA


Operating temperature

-40

20

+85


Operating humidity

10

60

90

%


Storage temperature

-40

20

+125


FAQ

  1. How often should I have my sewing machine cleaned and serviced?
    A. It depends on how often the sewing machine is used and the type of work done on the machine. Cotton fabrics and thread tend to create more lint buildup on your machine. Servicing and cleaning your machine allows the machine to operate smoothly. Also a machine that has been in storage for some time will require servicing as the lubricants can dry up over time.
  2. Why does the upper thread break?
    A.The needle may be inserted incorrectly or the eye may have sharp edges, the machine is not properly threaded or the upper thread tension is too tight.
  3. Why does the bobbin thread break?
    A.The bobbin may be wound unevenly, the bobbin case could be threaded incorrectly or the bobbin thread tension is too tight.
  4. How come my sewing machine skips stitches?
    A.You may have a bent or blunt needle, the needle is inserted incorrectly or the pressure on the foot is insufficient.
  5. Why do I keep breaking needles?
    A.The needle may be inserted incorrectly, you are pulling the fabric while sewing or you may be utilizing the incorrect size needle or thread for the fabric being sewn.
  6. Why doesn’t the sewing machine feed properly?
    A.The drop-feed knob is improperly adjusted, the pressure on the foot is insufficient or the stitch length knob is set too close to zero.
  7. Why does the fabric pucker?
    A.The upper thread tension is too tight, the bobbin thread tension is too tight or the fabric may be too sheer or too soft.
  8. Why does my sewing machine make loose stitches or loops?
    A.Tension is not properly adjusted.
  9. Why does my sewing machine run heavily?
    A.Machine may need oiling, dirt or lint buildup in the shuttle or dirt and lint between the teeth of the fabric feed dogs.
  10. My sewing machine will not sew. Why?
    A.Cord is not plugged into the electrical outlet or the stop motion knob is not tightened.
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E19-433M20S2 SX1278 LoRa 433MHz SMD SPI Long-range Communicator Radio 100mW Stamp Hole Wireless Transceiver Module LoRa 433

$6.05