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💬 EFEKTA WIRELESS TEMPERATURE & HUMIDITY SENSOR V1 | nRF52840

openhardware.io last edited by openhardware.io

https://www.openhardware.io/view/781/EFEKTA-WIRELESS-TEMPERATURE-and-HUMIDITY-SENSOR-V1-or-nRF52840
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Power sensor? Battery?
Development • battery battery powered • • CrankyCoder

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@NeverDie Yes, you are correct - it is based on ATMega1284P. So not relevant My point is that I'd rather stick to the datasheet rather than overclock, but that's just me. And yes I realise that Moteino is overclocking, but the size, voltage and flash are really appealing to me.
Testing battery level with regulator removed
Hardware • battery • • 4994james

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@4994james or just use internal vcc measurement as described on the same page. That saves you the voltage divider. I wrote a convenient library to measure vcc internally : https://github.com/Yveaux/Arduino_Vcc
💬 Door/Window Sensor
OpenHardware.io • mysensors nrf24l01 battery contest2017 door window • • openhardware.io

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In deep Sleep the cunsumption is below 19µA, but i have to send with PA_MAX. On some Windows the open/close frequency is verry high, so the battery is to fast emty. The CR2032 is good, but i want more "lifetime"
💬 MySensors node
OpenHardware.io • mysensors arduino nrf24l01 rfm69 temperature battery humidity atsha204a flash mysx1.5 • • openhardware.io

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@fets So far, I have only built the 5x5 board (but the others should be schematically identical). The only issue I have found so far is that I cannot get the ISP port to work. But I have checked and I have an identical setup on the 1.0 board and that worked, so I suspect the programmer is too weak to drive the net on this one. So it is not a board-issue per se, and might only be an issue on the 5x5 board as routing is the most complex on that one due to the size.
Battery level to openHAB
OpenHAB • mqtt battery openhab • • bomber

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http://forum.mysensors.org/topic/802/mqtt-and-batterylevel/2
💬 Power path manager and battery charger w/ 5V and 3.3V output
OpenHardware.io • battery power supply charger • • openhardware.io

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What is the max ampere capacity of 3.3V battery it can charge ? Is there any upper limit like 1000mAh or 3300mAh like that ?
💬 Single board computer UPS
OpenHardware.io • arduino battery raspberry dc-dc ups • • openhardware.io

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First soldered device: And a small test:
💬 EFEKTA V4 Temp&Hum&Press sensor with E-Ink 1.54
OpenHardware.io • nrf52832 nrf52 si7021 nrf52840 bme280 htu21d sht21 e-ink display nrf52833 • • openhardware.io

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💬 EFEKTA WIRELESS TEMPERATURE & HUMIDITY SENSOR V1 | nRF52840

Suggested Topics

Power sensor? Battery?
Development • battery battery powered • • CrankyCoder

Testing battery level with regulator removed
Hardware • battery • • 4994james

💬 Door/Window Sensor
OpenHardware.io • mysensors nrf24l01 battery contest2017 door window • • openhardware.io

💬 MySensors node
OpenHardware.io • mysensors arduino nrf24l01 rfm69 temperature battery humidity atsha204a flash mysx1.5 • • openhardware.io

Battery level to openHAB
OpenHAB • mqtt battery openhab • • bomber

💬 Power path manager and battery charger w/ 5V and 3.3V output
OpenHardware.io • battery power supply charger • • openhardware.io

💬 Single board computer UPS
OpenHardware.io • arduino battery raspberry dc-dc ups • • openhardware.io

💬 EFEKTA V4 Temp&Hum&Press sensor with E-Ink 1.54
OpenHardware.io • nrf52832 nrf52 si7021 nrf52840 bme280 htu21d sht21 e-ink display nrf52833 • • openhardware.io

71
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💬 EFEKTA WIRELESS TEMPERATURE & HUMIDITY SENSOR V1 | nRF52840

Suggested Topics

Power sensor? Battery? Development • battery battery powered • • CrankyCoder

Testing battery level with regulator removed Hardware • battery • • 4994james

💬 Door/Window Sensor OpenHardware.io • mysensors nrf24l01 battery contest2017 door window • • openhardware.io

💬 MySensors node OpenHardware.io • mysensors arduino nrf24l01 rfm69 temperature battery humidity atsha204a flash mysx1.5 • • openhardware.io

Battery level to openHAB OpenHAB • mqtt battery openhab • • bomber

💬 Power path manager and battery charger w/ 5V and 3.3V output OpenHardware.io • battery power supply charger • • openhardware.io

💬 Single board computer UPS OpenHardware.io • arduino battery raspberry dc-dc ups • • openhardware.io

💬 EFEKTA V4 Temp&Hum&Press sensor with E-Ink 1.54 OpenHardware.io • nrf52832 nrf52 si7021 nrf52840 bme280 htu21d sht21 e-ink display nrf52833 • • openhardware.io

71Online

10.8kUsers

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111.9kPosts

Power sensor? Battery?
Development • battery battery powered • • CrankyCoder

Testing battery level with regulator removed
Hardware • battery • • 4994james

💬 Door/Window Sensor
OpenHardware.io • mysensors nrf24l01 battery contest2017 door window • • openhardware.io

💬 MySensors node
OpenHardware.io • mysensors arduino nrf24l01 rfm69 temperature battery humidity atsha204a flash mysx1.5 • • openhardware.io

Battery level to openHAB
OpenHAB • mqtt battery openhab • • bomber

💬 Power path manager and battery charger w/ 5V and 3.3V output
OpenHardware.io • battery power supply charger • • openhardware.io

💬 Single board computer UPS
OpenHardware.io • arduino battery raspberry dc-dc ups • • openhardware.io

💬 EFEKTA V4 Temp&Hum&Press sensor with E-Ink 1.54
OpenHardware.io • nrf52832 nrf52 si7021 nrf52840 bme280 htu21d sht21 e-ink display nrf52833 • • openhardware.io

71
Online

10.8k
Users

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