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add pbhub
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LiHuashen
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<!-- :memo:**[Description](#Description)** :octocat:**[Example](#Example)** :electric_plug:**[Schematic](#Schematic)** 🛒**[Purchase](https://www.aliexpress.com/item/New-Arrival-M5Stack-Official-I2C-Hub-1-to-6-Expansion-Grove-I2C-Interface-for-Arduino-Blockly/32998974179.html?gps-id=pcStoreJustForYou&scm=1007.23125.122752.0&scm_id=1007.23125.122752.0&scm-url=1007.23125.122752.0&pvid=0cd77ea5-52b2-4aa7-856b-0dd4e43ee0d1&spm=a2g1y.12024536.smartJustForYou_39076158.12)** -->
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<!-- https://item.taobao.com/item.htm?spm=a1z10.1-c.w4004-21234898041.9.1a312307NvDLCF&id=590738436768 -->
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## Description
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**PaHUB**, is a expander for I2C GROVE PORTA(red port on M5Core). 1-to-6. If you want connect mutiple I2C slave devices and some of them may sharing the same address, this unit can resolve I2C address conflicts.
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# Unit PbHUB {docsify-ignore-all}
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<img src="assets/img/product_pics/unit/pbhub/pbhub_p1.png" width="30%" height="30%"><img src="assets/img/product_pics/unit/pbhub/pbhub_p2.png" width="30%" height="30%"><img src="assets/img/product_pics/unit/pbhub/pbhub_grove_a.png" width="30%" height="30%">
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***
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:memo:**[Description](#Description)** :electric_plug:**[Schematic](#Schematic)** 🛒**[Purchase](https://www.aliexpress.com/store/product/New-Arrival-M5Stack-Official-I-O-Hub-1-to-6-Expansion-Grove-I-O-Interface-for/3226069_33006652505.html?spm=2114.12010612.8148356.36.1e112c5cR01Vkh)**
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<!-- :memo:**[Description](#Description)** :octocat:**[Example](#Example)** :electric_plug:**[Schematic](#Schematic)** 🛒**[Purchase](https://www.aliexpress.com/item/New-Arrival-M5Stack-Official-I2C-Hub-1-to-6-Expansion-Grove-I2C-Interface-for-Arduino-Blockly/32998974179.html?gps-id=pcStoreJustForYou&scm=1007.23125.122752.0&scm_id=1007.23125.122752.0&scm-url=1007.23125.122752.0&pvid=0cd77ea5-52b2-4aa7-856b-0dd4e43ee0d1&spm=a2g1y.12024536.smartJustForYou_39076158.12)** -->
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## Description
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**PbHUB**, is a expander for singel-bus GROVE PORTB(Black port on M5GO Base). 1-to-6. PortB can be used as GPIO and analog in two data lines connected to GPIO36 and GPIO26 on ESP32. Same as PaHUB, it provides a solution for mutiple device control by PORTB. With PbHUB each of the IO can be configurated to input, output and analog in as you like. Unfortunatly this Unit is unnested.
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It is build with a MEGA328, with a simple driver firmware inside.
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The I2C address of this unit is 0x40(Changable by resistors).
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*Notice: Please pay attention to the channel order while programing*
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<img src="assets/img/product_pics/unit/pbhub/pbhub_p3.png">
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## Product Features
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- Single-Bus GROVE PORTB Expander
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- Two Lego-compatible holes
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- Nested allowed
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- 1-To-6
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## Include
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- 1x PbHUB Unit
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- 1x Grove Cable
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## Driver Protocol
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- protovol type - I2C
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- address - 0x61
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- Set oneLED Color* : LED address(2bytes) + RGB value(3bytes)
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- Set moreLED Color* : LED start address(2bytes) + LED end address(2bytes) + RGB value(3bytes)
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<table>
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<tr>
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<td>state</td><td>IO0 Digital Write</td><td>IO1 Digital Write</td><td>IO0 Analog Write</td><td>IO1 Analog Write</td><td>IO0 Digital Read</td><td>IO1 Digital Read</td><td>IO0 Analog Read</td><td>reserve</td><td>Set Neopixle Num</td><td>Set oneLED Color*</td><td>Set moreLED Color*</td><td>Set Brightness</td>
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</tr>
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<tr>
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<td>r/w</td></td></td><td>w</td><td>w</td><td>w</td><td>w</td><td>r</td><td>r</td><td>r</td><td>r</td><td>w</td><td>w</td><td>w</td><td>w</td></tr>
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<tr>
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<td>data length (Byte)</td><td>1</td><td>1</td><td>1</td><td>1</td><td>1</td><td>1</td><td>2</td><td>/</td><td>2</td><td>5</td><td>7</td><td>1</td>
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</tr>
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<tr>
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<td>ch0 cmd</td></td><td>40</td><td>41</td><td>42</td><td>43</td><td>44</td><td>45</td><td>46</td><td>47</td><td>48</td><td>49</td><td>4A</td><td>4B</td>
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</tr>
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<tr>
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<td>ch1 cmd</td></td><td>50</td><td>51</td><td>52</td><td>53</td><td>54</td><td>55</td><td>56</td><td>57</td><td>58</td><td>59</td><td>5A</td><td>5B</td>
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</tr>
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<tr>
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<td>ch2 cmd</td></td><td>60</td><td>61</td><td>62</td><td>63</td><td>64</td><td>65</td><td>46</td><td>67</td><td>68</td><td>69</td><td>6A</td><td>6B</td>
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</tr>
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<tr>
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<td>ch3 cmd</td></td><td>70</td><td>71</td><td>72</td><td>73</td><td>74</td><td>75</td><td>76</td><td>77</td><td>78</td><td>79</td><td>7A</td><td>7B</td>
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</tr>
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<tr>
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<td>ch4 cmd</td></td><td>80</td><td>81</td><td>82</td><td>83</td><td>84</td><td>85</td><td>86</td><td>87</td><td>88</td><td>89</td><td>8A</td><td>8B</td>
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</tr>
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<tr>
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<td>ch5 cmd</td></td><td>A0</td><td>A1</td><td>A2</td><td>A3</td><td>A4</td><td>A5</td><td>A6</td><td>A7</td><td>A8</td><td>A9</td><td>AA</td><td>AB</td>
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</tr>
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</table>
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## Related Link
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- **[Offical Video](https://www.youtube.com/channel/UCozgFVglWYQXbvTmGyS739w)**
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- **[Forum](http://forum.m5stack.com/)**
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- Driver firmware - **[PbHUB](https://github.com/m5stack/PbHUB/tree/master/PortB_HUB/Firmware)**
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- Test code - **[PbHUB](https://github.com/m5stack/PbHUB/tree/master/PortB_HUB)**
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<!-- ## Example
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### 1. Arduino IDE
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*The code below is incomplete. To get complete code, please click [here](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Unit/Makey_NewVersion/Arduino/Makey_new_version).*
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```arduino
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#include <M5Stack.h>
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#include <Wire.h>
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// initialization
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M5.begin();
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pinMode(21, INPUT); pinMode(22, INPUT);
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Wire.begin();// Init I2C
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// read data
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Wire.requestFrom(MAKEY_ADDR, 2);
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while (Wire.available()) {
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Key1 = Wire.read();//read data from MAKEY
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Key2 = Wire.read();//read data from MAKEY
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tone_key = (Key2<<8) | Key1;// the following picture will explain "tone_key"
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}
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```
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<img src="assets/img/product_pics/unit/unit_example/MAKEY/tone_key_pitch_zh_CN.png">
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<img src="assets/img/product_pics/unit/M5GO_Unit_makey_04.png" width="30%" height="30%">
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### 2. UIFlow
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*To get complete code, please click [here](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Unit/Makey_NewVersion/UIFlow).*
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<img src="assets/img/product_pics/unit/unit_example/MAKEY/example_unit_makey_02.png"> -->
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## Schematic
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<img src="assets/img/product_pics/unit/pbhub/pbhub_sch.png">
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### PinMap
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<table>
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<tr><td>M5Core(GROVE A)</td><td>GPIO22</td><td>GPIO21</td><td>5V</td><td>GND</td></tr>
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<tr><td>PbHUB Unit</td><td>SCL</td><td>SDA</td><td>5V</td><td>GND</td></tr>
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</table>
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<!--
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<img src="assets/img/product_pics/unit/M5GO_Unit_makey_03.png" width="30%" height="30%"> -->
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@@ -648,6 +648,7 @@
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</div>
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## PaHUB
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## PbHUB
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<div class="item">
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<a href="/#/en/unit/pahub">
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@@ -656,6 +657,13 @@
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<p class="item-title" style="font-style:italic;">PaHUB</p>
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</div>
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<div class="item">
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<a href="/#/en/unit/pbhub">
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<img src="https://m5stack.oss-cn-shenzhen.aliyuncs.com/image/m5-docs_homepage/unit/unit_pbhub_p1.png">
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</a>
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<p class="item-title" style="font-style:italic;">PbHUB</p>
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</div>
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***
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# Application
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