diff --git a/README.md b/README.md index d459012..1cb46a1 100644 --- a/README.md +++ b/README.md @@ -1,21 +1,23 @@ -# H-Bridge breakout PCB for CP2119L or TMI8260SP -* For driving DC motors, coils and other inductive loads -* Bi-directional output -* Up to 18V, 5A -* Works with 1.8 - 5.0V logic +# 18V 5A H-Bridge breakout board +* For driving **DC motors**, **coils** or other inductive loads +* **Bi-directional** output control +* Input **3.0-18V** +* Output **up to 5A continuous**, up to 9A pulse +* Works with **1.8V to 6.0V logic** level inputs * Overcurrent protection * Short circuit protection * Overheat protection * Integrated flyback diodes * Pretty idiot-proof +* Uses CP2119L or TMI8260SP integrated circuit # Basic operation ![](images/usage.jpg) -* Logic HIGH on the FORWARD pin makes the motor spin FORWARD (M+ becomes VIN, M- becomes GND) -* Logic HIGH on the REVERSE pin makes the motor spin REVERSE (M+ becomes GND, M- becomes VIN) -* Logic HIGH on BOTH pins makes the motor ACTIVELY BREAK (M+ becomes GND, M- becomes GND) -* Logic LOW on BOTH pins makes the motor FREESPIN (M+ floats, M- floats) +* Logic HIGH on the FORWARD pin makes the motor spin **FORWARD** (M+ becomes VIN, M- becomes GND) +* Logic HIGH on the REVERSE pin makes the motor spin **REVERSE** (M+ becomes GND, M- becomes VIN) +* Logic HIGH on BOTH pins makes the motor ACTIVELY **BREAK** (M+ becomes GND, M- becomes GND) +* Logic LOW on BOTH pins makes the motor **FREESPIN** (M+ floats, M- floats) ## "Analog" control * The power of the motor can be precisely adjusted (0-100%) by applying a PWM SQUARE WAVE to the FORWARD/REVERSE pins @@ -69,6 +71,7 @@ The TMI8260/CP2119 has protection features that allow it to protect **ITSELF** * The PCB has space for additional external flyback diodes, for more extreme cases (see "Use cases") # Parts included in the kit: +![](images/content.jpeg) * Breakout PCB * TMI8260SP-MS chip [(datasheet in Chinese)](datasheets/TMI8260SP-MS.pdf) * Polymer aluminium capacitor (SHENGYANG SM227M025E0600 220uF 25V) diff --git a/images/content.jpeg b/images/content.jpeg new file mode 100644 index 0000000..00a43eb Binary files /dev/null and b/images/content.jpeg differ