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Update mcp4461_output.cpp

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This commit is contained in:
Oliver Kleinecke
2025-02-20 12:52:25 +01:00
committed by GitHub
parent b6a27a70cc
commit 89abf35b70
1 changed files with 7 additions and 0 deletions
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7
esphome/components/mcp4461/output/mcp4461_output.cpp
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@@ -12,6 +12,13 @@ static const char *const TAG = "mcp4461.output";
// floats from other components (like light etc.) are passed as "percentage floats" // floats from other components (like light etc.) are passed as "percentage floats"
// this function converts them to the 0 - 256 range used by the MCP4461 // this function converts them to the 0 - 256 range used by the MCP4461
void Mcp4461Wiper::write_state(float state) { void Mcp4461Wiper::write_state(float state) {
if (!std::isfinite(state)) {
return;
}
state = clamp(state, 0.0f, 1.0f);
if (this->is_inverted()) {
state = 1.0f - state;
}
if (this->parent_->set_wiper_level_(this->wiper_, static_cast<uint16_t>(std::roundf(state * 256)))) { if (this->parent_->set_wiper_level_(this->wiper_, static_cast<uint16_t>(std::roundf(state * 256)))) {
this->state_ = state; this->state_ = state;
} }