Introductory complaint: Please switch to more traditional forum software as I lost this entire post below and had to rewrite it due to a bad internet connection and the bad design of this software, which prevents the text from being stored in the browser memory if you lose connection and then press the back button, or examine the page source. This is the second time this has happened to me despite being very new to this forum. The draft feature does nothing to remedy this, because you already lost your connection. The more sophisticated nature of the forum software ironically causes the text to become eternally lost, whereas a traditional HTML text input box would be remembered by the web browser’s memory and would be recoverable.
Another potentially incredibly useful feature to me is the imp006’s built-in 5V boost output on the BQ24295 voltage regular which would theoretically allow me to use LiPo batteries for my remote stations.
My current usage of Particle’s products alone prevents this because:
- I have some sensors which are 5V-only and there’s no boost circuitry on their boards;
- My sites are in cold climates and must be able to turn off LiPo battery charging under 32F to not damage the battery, and the broken Particle software ruins this ability.
The imp006’s combination of a LiPo connector, a built-in temp sensor, and a 5V boost regulator is HIGHLY promising to me. I currently have heavy/expensive 12V solar + 12V SLA + external solar charger + external 12v-5v regulator setups which I am looking to simplify.
But the 5V boost regulator is not working for me:
- I take a brand new imp006 Breakout Board from the box;
- I take and connect a LiPo measured at 4.0V open circuit;
- I solder 1-2 together on JP-E (W10 left unsoldered);
- I jump “1-2” for JP-A through JP-D.
However, the 5V pin reads “3.8V” which is the same as the LiPo voltage under load. No boost.
When is the BQ24295 boost output enabled? Is it not automatically on, as the JP-E jumper text would indicate? The BQ24295 datasheet says, “The boost mode is activated when the OTG pin is High, REG01= 1, and no Input source is detected at VBUS.” What is the imp006 Breakout Board doing wtih the BQ24295 OTG pin?