Answers.Body: <p>The bulk of the space inside the Powered Up hub is consumed by the housing for the 6 AAA batteries. A small portion of the top of the hub contains the main printed circuit board. Here's how it looks removed from the hub:</p>
  
  <p><a href="https://i.sstatic.net/xe4V8.jpg" rel="noreferrer"><img src="https://i.sstatic.net/xe4V8.jpg" alt="hub front"></a></p>
  
  <p>And here's another shot showing the back:</p>
  
  <p><a href="https://i.sstatic.net/Czqf0.jpg" rel="noreferrer"><img src="https://i.sstatic.net/Czqf0.jpg" alt="hub back"></a></p>
  
  <p>The main chip is very similar to the one used in Boost. It uses an <a href="https://www.st.com/en/microcontrollers/stm32f0-series.html?querycriteria=productId=SS1574" rel="noreferrer">STM32F030</a> from ST Microelectronics. This includes a 32 bit ARM Cortex-M0 clocked at 48Mhz.</p>
  
  <p>For Bluetooth Low Energy (BLE) communication, the Powered Up hub uses a <a href="http://www.ti.com/product/cc2640" rel="noreferrer">CC2640 from Texas Instruments</a>.</p>
  
  <p>The largest chip on the underside of the board is an <a href="https://www.onsemi.com/pub/Collateral/LB1836M-D.PDF" rel="noreferrer">LB1836</a>. I haven't done any testing on the traces, but that part is a dual-channel stepper motor driver and is placed near the output ports, so it is almost certainly used to drive the output current to servo motors. The front side includes a pair of <a href="https://assets.nexperia.com/documents/data-sheet/74HC_HCT2G125.pdf" rel="noreferrer">74HC2G125DP</a> chips near the output ports. These are likely used select which CPU pin the output pin is connected to.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-08-16T01:37:26.130Z
Answers.LastActivityDate: 2018-09-03T03:34:39.400Z
Answers.LastEditDate: 2018-09-03T03:34:39.400Z
Answers.UserDisplayName: jncraton
Body: <p>I'm curious what the internals of the new Powered Up hub look like? What components are inside?</p>
  
  <p><a href="https://i.sstatic.net/GEpAQ.jpg" rel="noreferrer"><img src="https://i.sstatic.net/GEpAQ.jpg" alt="Powered Up hub"></a></p>
  
Tags: <electronics><powered-up>
Title: What electronics are inside the LEGO Powered Up hub?
UserDisplayName: jncraton
ThreadText: # What electronics are inside the LEGO Powered Up hub?
  
  (Asked by: username_0 on 2018-08-16)
  
  I'm curious what the internals of the new Powered Up hub look like? What components are inside?
  
  [![Powered Up hub](https://i.sstatic.net/GEpAQ.jpg)](https://i.sstatic.net/GEpAQ.jpg)
  
  **Tags:** electronics, powered-up
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_0 on 2018-08-16. Score: 15 | Accepted answer
  
  The bulk of the space inside the Powered Up hub is consumed by the housing for the 6 AAA batteries. A small portion of the top of the hub contains the main printed circuit board. Here's how it looks removed from the hub:
  
  [![hub front](https://i.sstatic.net/xe4V8.jpg)](https://i.sstatic.net/xe4V8.jpg)
  
  And here's another shot showing the back:
  
  [![hub back](https://i.sstatic.net/Czqf0.jpg)](https://i.sstatic.net/Czqf0.jpg)
  
  The main chip is very similar to the one used in Boost. It uses an [STM32F030](https://www.st.com/en/microcontrollers/stm32f0-series.html?querycriteria=productId=SS1574) from ST Microelectronics. This includes a 32 bit ARM Cortex-M0 clocked at 48Mhz.
  
  For Bluetooth Low Energy (BLE) communication, the Powered Up hub uses a [CC2640 from Texas Instruments](http://www.ti.com/product/cc2640).
  
  The largest chip on the underside of the board is an [LB1836](https://www.onsemi.com/pub/Collateral/LB1836M-D.PDF). I haven't done any testing on the traces, but that part is a dual-channel stepper motor driver and is placed near the output ports, so it is almost certainly used to drive the output current to servo motors. The front side includes a pair of [74HC2G125DP](https://assets.nexperia.com/documents/data-sheet/74HC_HCT2G125.pdf) chips near the output ports. These are likely used select which CPU pin the output pin is connected to.
  
  
  ---
  
  