ESP8266 Community Forum

- Fri Jul 22, 2016 5:33 pm #51294 Ok I will check those batteries out, I want to stick with ESP01 for a few devices simply because of the size, I could not get the resistor soldered so deep sleep is out of reach at the moment. Any specific type of Lilon battery. I was recommended these as well thought i would mention see what you thought.

http://www.ebay.es/itm/4-x-Panasonic-en ... 1688779178

Amazing selection of ESP8266 and ESP32 modules can be found here.

- Fri Jul 22, 2016 5:35 pm #51296 Hi, I think you need to post some schematics and code. I have a project that is nearly complete (has to be by next weekend) that is using an ESP to receive UDP packets and then display them on a 7 x 5 WS2812b matrix. As this is a set of wearables they run from 3 AAA batteries (can't risk melting the guests if Lipo's go bad). From test with 50% of the WS on at any time at a brightness of 32/255 I'm getting 6 hours continious running time.
https://vimeo.com/173760061
If just reading sensors your batteries are failing in less than a day you are doing something fundamentally wrong.

Last edited by Barnabybear on Fri Jul 22, 2016 6:36 pm, edited 4 times in total.

- Fri Jul 22, 2016 5:45 pm #51297

Hi, I think you need to post some schematics and code. I have a project that is nearly complete (has to be by next weekend) that is using an ESP to receive UDP packets and then display them on a 7 x 5 WS2812b matrix. As this is a wearable it runs from 3 AAA batteries. From test with 50% of the WS on at any time at a brightness of 32/255 I'm getting 6 hours running time. If just reading sensors your batteries are failing in less than a day you are doing something fundamentally wrong.

Hi mate. Do you have an email address will send you the code. Both circuits were set up the same vcc of sensor connected to GPIO0 with 1 k resistor, signal connected to GPIO2 with 1 k resistor, only difference was the DHT had a A1117 regulator for the 9v.

Amazing selection of ESP8266 and ESP32 modules can be found here.

- Fri Jul 22, 2016 6:14 pm #51301 Hi, I've added a video link to my previous post. When I did the battery tests for this project I purchased 3 different types from my local £1 store and tested them receiving UDP packets and continuously lighting 50% of the 35 pixels.
The results:
16 for a £1 lasted 5 mins.
10 for a £1 lasted 90 mins.
6 for a £1 lasted 6 hours.
In fairness, given some resting time all 3 sets recovered and would then power the project again but I didn’t really test this.
In reality I’m using less than 50% of the pixels and the display is not continuous, so I will be surprised if I get less than 8 hours from 3 AAA batteries.