Home-made leaf development
Template Project for Board CAD
Section titled “Template Project for Board CAD”You can use Leafony’s template projects for various types of circuit CAD to help you design your boards.
I2C Address Map
Section titled “I2C Address Map”There are several leaves in the Leafony kit that use I2C communication.
When the same I2C pin is used to communicate with multiple ICs, the same I2C address cannot be used, in principle.
When using I2C communication on your own board, design your board so that the addresses do not overlap.
The addresses already in use are shown in the table below.
| Type | Leaf | Description | Chip | I2C Address | ||
|---|---|---|---|---|---|---|
| AI01 | 4-Sensors | Temperature and humidity sensor | HTS221TR | 0x5F | - | - |
| Illuminance sensor | OPT3001 | 0x45 | 0x44 | - | ||
| Accelerometer | LIS3DHTR | 0x19 | - | - | ||
| AI02 | SP&PIR | PIR | AK9754 | 0x65 | 0x66 | - |
| AI03 | MIC&VR&LED | IO Expander | PCA9557RGVR | 0x1B | - | - |
| AI04 | LCD | LCD | AQM0802A-RN-GBW | 0x3E | - | - |
| IO Expander | PCA9557RGVR | 0x1A | 0x1E | - | ||
| AV01-AV04 | BAT | ADC | ADC081C027CIMK | 0x50 | 0x51 | 0x52 |
| AV05 | Solar | ADC | ADC081C027CIMK | 0x52 | 0x50 | 0x51 |
| AV06 | Grove | IO Expander | PCA9557RGVR | 0x18 | - | - |
| AZ02 | SD&RTC | Real Time Clock | Chip | 0x68 | - | - |
Leafony bus Pin layout
Section titled “Leafony bus Pin layout”
Board Manufacturing Tutorial
Section titled “Board Manufacturing Tutorial”Installation and removal of chip components
Section titled “Installation and removal of chip components”These videos show you how to install and remove small chip resistors and capacitance from the leaf.