BlueNRG-1 completes the challenge (power consumption difference)

gs001588

BlueNRG-1 completes the challenge (power consumption difference) [Copy link]

 

BlueNRG-1 plus challenge function completed (power consumption difference)

The broadcast data is based on the array structure of moderator littleshrimp,The function is basically completed.

Unfortunately, the working time is too short, only 200 seconds, and I have to find out which part has problems. The hardware does not have a direct-insert resistor. I don't have one at home. It is a rare item. The company also uses SMD ones. (The moderator added a direct-insert resistor in the post, https://bbs.eeworld.com.cn/forum. ... 9556&fromuid=449420)

Voltage 2 bytes, time 4 bytes, air pressure 2 bytes, temperature 2 bytes, X axis 2 bytes, Y axis 2 bytes. "07 9f 00 02 2A 12 26 41 00 ED 00 0F 00 1B" Voltage: 0x079f = 1951mV; Time: 0x00022A12 = 141842ms = 141.842 seconds Air pressure: 0x2641 = 9739, 9739/10 = 973.9mbar, not converted to hPa yet Temperature: 0x00ED = 237, 237/10 = 23.7 degrees Celsius X axis: 0x000F = 15, 15/10 = 1.5 degrees Y axis: 0x001B = 27, 27/10 = 2.7 degrees Initial version 20180128 Test firmware: 200 seconds 343323 20180129 Test firmware: 10 minutes of work 343776 [/attach]

gs001588

According to the moderator's post, it seems that I did not set the sensor to low power consumption, and only the BlueNRG-1 low power consumption did not work.

littleshrimp

Your idle current is about 1.6mA. Maybe the sensor and BlueNRG-1's low power mode are not properly handled. The wake-up time is 1.25 seconds. If the power consumption is reduced, this time can be extended. The voltage value should be divided by 100.

gs001588

littleshrimp posted on 2018-1-29 11:52 Your idle current is around 1.6mA. Maybe the sensor and BlueNRG-1's low power mode don't handle the 1.25 second wake-up time well. If the power consumption is reduced...

Thank you littleshrimp for helping me test it!! My Honor 8 is also immune to APP. I can't receive data packets when I open it, so I use USB Dongle. I'll go back and work on the low power consumption of the sensor. I tested the current of BlueNRG-1 by connecting a multimeter to JP4. It jumps between 0 and 0.38mA. It may not be accurate. For voltage, I uploaded the mV value. If it is suitable for your APP, I will modify it. The entry requirements say that the unit to be uploaded is mV. You need to upload 3.0V, 2.8V, 2.6V, 2.4V, 2.2V, and 2.0V.

littleshrimp

gs001588 posted on 2018-1-29 12:01 Thank you littleshrimp for helping me test!! My Honor 8 is also immune to APP. I can't receive data packets when I open it, so I use USB Dongle. Go back...

The actual current also includes acceleration and pressure sensors. The measurement of pin 2 of jp2 is closer to the discharge current of the super capacitor. Take a look at the low power consumption. Logic sensors are not often used. It is recommended to use single conversion mode, or configure it to enter power-down mode immediately after the conversion is completed.

gs001588

littleshrimp posted on 2018-1-29 12:06 The actual current also includes the acceleration and air pressure sensors. Measuring the 2nd pin of jp2 is closer to the discharge current of the supercapacitor. You can look at the logic of low power consumption...

OK, thank you for your guidance. Air pressure and temperature are used least frequently; after the power consumption is stable, try to touch the voltage change curve, so that when the voltage is high, you can sample the voltage at a longer interval, and sample more frequently when it is below 1.5V; sample the X and Y directions every time, and consider turning off the Z and the other three. I don’t know if it can save more.

littleshrimp

gs001588 posted on 2018-1-29 12:13 OK, thank you for your guidance. Air pressure and temperature are used least frequently; after the power consumption is stable, try to touch the voltage change curve, so that when the voltage is high, you can...

In fact, the most power-saving way is to measure the battery voltage after waking up regularly, and then measure the sensor and broadcast data when the battery voltage meets the conditions for sending data, and then enter sleep mode.

gs001588

littleshrimp posted on 2018-1-29 12:20 Yes, in fact, the most power-saving method is to measure the battery voltage after waking up regularly, and then measure the sensor and broadcast data when the battery voltage meets the conditions for sending data...

Thank you for your guidance! Last night, the environmental sensor LPS25HB was turned on only before sampling, and then powered down after sampling. I haven't figured out the LSM6DS3 yet. The structure in the sample is very complicated. I tried to re-initialize before sampling in the program, and power down the device after sampling, but failed to successfully re-sample the value. It seems that I may have to do it directly with I2C. I downloaded and read the program information uploaded by the forum "Spying Paper Sky Eye". I have turned off the Z of the gyroscope and accelerometer. I haven't processed the SPI IO yet. Now the working time can be up to 10 minutes.

cruelfox

littleshrimp posted on 2018-1-29 12:20 Yes, in fact, the most power-saving way is to measure the battery voltage after timed wake-up, and then measure the sensor and broadcast data when the battery voltage meets the conditions for sending data...

Yes, I have done this, but it is too boring to have no movement for a long time.

littleshrimp

cruelfox posted on 2018-1-30 15:04 Yes, I have done this, but it is too boring when there is no movement for a long time.

It is boring. If you don’t connect a multimeter to check the current voltage, you can’t even be sure whether it works. For example, if you don’t receive data for a few hours, you can check and find that the power supply is not connected