Add AEHA IR Protocol (#3726)

2026-05-23 14:18:28 +02:00 · 2022-08-31 13:43:33 +09:00
parent 15eb9605a8
commit 0907de8662
4 changed files with 197 additions and 0 deletions
@@ -0,0 +1,103 @@
+#include "aeha_protocol.h"
+#include "esphome/core/log.h"
+#include <cinttypes>
+
+namespace esphome {
+namespace remote_base {
+
+static const char *const TAG = "remote.aeha";
+
+static const uint16_t BITWISE = 425;
+static const uint16_t HEADER_HIGH_US = BITWISE * 8;
+static const uint16_t HEADER_LOW_US = BITWISE * 4;
+static const uint16_t BIT_HIGH_US = BITWISE;
+static const uint16_t BIT_ONE_LOW_US = BITWISE * 3;
+static const uint16_t BIT_ZERO_LOW_US = BITWISE;
+static const uint16_t TRAILER = BITWISE;
+
+void AEHAProtocol::encode(RemoteTransmitData *dst, const AEHAData &data) {
+  dst->set_carrier_frequency(38000);
+  dst->reserve(2 + 32 + (data.data.size() * 2) + 1);
+
+  dst->item(HEADER_HIGH_US, HEADER_LOW_US);
+
+  for (uint16_t mask = 1 << 15; mask != 0; mask >>= 1) {
+    if (data.address & mask) {
+      dst->item(BIT_HIGH_US, BIT_ONE_LOW_US);
+    } else {
+      dst->item(BIT_HIGH_US, BIT_ZERO_LOW_US);
+    }
+  }
+
+  for (uint8_t bit : data.data) {
+    for (uint8_t mask = 1 << 7; mask != 0; mask >>= 1) {
+      if (bit & mask) {
+        dst->item(BIT_HIGH_US, BIT_ONE_LOW_US);
+      } else {
+        dst->item(BIT_HIGH_US, BIT_ZERO_LOW_US);
+      }
+    }
+  }
+
+  dst->mark(TRAILER);
+}
+optional<AEHAData> AEHAProtocol::decode(RemoteReceiveData src) {
+  AEHAData out{
+      .address = 0,
+      .data = {},
+  };
+  if (!src.expect_item(HEADER_HIGH_US, HEADER_LOW_US))
+    return {};
+
+  for (uint16_t mask = 1 << 15; mask != 0; mask >>= 1) {
+    if (src.expect_item(BIT_HIGH_US, BIT_ONE_LOW_US)) {
+      out.address |= mask;
+    } else if (src.expect_item(BIT_HIGH_US, BIT_ZERO_LOW_US)) {
+      out.address &= ~mask;
+    } else {
+      return {};
+    }
+  }
+
+  for (uint8_t pos = 0; pos < 35; pos++) {
+    uint8_t data = 0;
+    for (uint8_t mask = 1 << 7; mask != 0; mask >>= 1) {
+      if (src.expect_item(BIT_HIGH_US, BIT_ONE_LOW_US)) {
+        data |= mask;
+      } else if (src.expect_item(BIT_HIGH_US, BIT_ZERO_LOW_US)) {
+        data &= ~mask;
+      } else if (pos > 1 && src.expect_mark(TRAILER)) {
+        return out;
+      } else {
+        return {};
+      }
+    }
+
+    out.data.push_back(data);
+  }
+
+  if (src.expect_mark(TRAILER)) {
+    return out;
+  }
+
+  return {};
+}
+
+std::string AEHAProtocol::format_data_(const std::vector<uint8_t> &data) {
+  std::string out;
+  for (uint8_t byte : data) {
+    char buf[6];
+    sprintf(buf, "0x%02X,", byte);
+    out += buf;
+  }
+  out.pop_back();
+  return out;
+}
+
+void AEHAProtocol::dump(const AEHAData &data) {
+  auto data_str = format_data_(data.data);
+  ESP_LOGD(TAG, "Received AEHA: address=0x%04X, data=[%s]", data.address, data_str.c_str());
+}
+
+}  // namespace remote_base
+}  // namespace esphome