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[modbus] Fix timing bugs and better adhere to spec (#8032)

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Co-authored-by: brambo123 <52667932+brambo123@users.noreply.github.com>
Co-authored-by: Keith Burzinski <kbx81x@gmail.com>
Co-authored-by: J. Nick Koston <nick@koston.org>
Co-authored-by: J. Nick Koston <nick+github@koston.org>
Co-authored-by: J. Nick Koston <nick@home-assistant.io>
This commit is contained in:
Bonne Eggleston
2026-03-05 20:54:17 +00:00
committed by GitHub
co-authored by brambo123 Keith Burzinski J. Nick Koston J. Nick Koston J. Nick Koston
parent d11e7cab46
commit b0be02e16d
14 changed files with 396 additions and 121 deletions
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esphome/components/modbus_controller/modbus_controller.cpp
+1 -1
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@@ -18,7 +18,7 @@ void ModbusController::setup() { this->create_register_ranges_(); }
bool ModbusController::send_next_command_() {
uint32_t last_send = millis() - this->last_command_timestamp_;
if ((last_send > this->command_throttle_) && !waiting_for_response() && !this->command_queue_.empty()) {
if ((last_send > this->command_throttle_) && this->ready_for_immediate_send() && !this->command_queue_.empty()) {
auto &command = this->command_queue_.front();
// remove from queue if command was sent too often