feat: use uv and protobuf

components/app_proto/proto/hr_packet.proto

@@ -0,0 +1,86 @@
+// See `Generator Options` section in
+// https://jpa.kapsi.fi/nanopb/docs/reference.html#generator-options
+// for nanopb specific options
+//
+// Remember to include
+// https://github.com/nanopb/nanopb/blob/master/generator/proto/nanopb.proto
+// when generating the proto file
+
+syntax = "proto3";
+import "nanopb.proto";
+
+package hr_packet;
+
+enum HrConfidence {
+    // [0,25)
+    ZERO = 0;
+    // [25,50)
+    LOW     = 1;
+    // [50,75]
+    MEDIUM  = 2;
+    // (75,100]
+    HIGH    = 3;
+}
+
+enum LoRaBW {
+    BW_NONE = 0;
+    // nobody is using 7.8 kHz bandwidth
+    // so to satisfy protobuf, we use NONE for zero value
+    BW_10_4 = 0x08;
+    BW_15_6 = 0x01;
+    BW_20_8 = 0x09;
+    BW_31_25 = 0x02;
+    BW_41_7 = 0x0A;
+    BW_62_5 = 0x03;
+    BW_125_0 = 0x04;
+    BW_250_0 = 0x05;
+    BW_500_0 = 0x06;
+}
+
+message LoRaParameters {
+    LoRaBW bw = 1;
+    int32 sf = 2  [(nanopb).int_size = IS_8];
+    float frequency = 3;
+}
+
+message StatusFlag {
+    HrConfidence hr_confidence = 1 [(nanopb).int_size = IS_8]; 
+    bool is_active             = 2;
+    bool is_on_skin            = 3;
+    uint32 battery             = 4 [(nanopb).int_size = IS_8];
+}
+
+message HrOnlyPacket {
+    StatusFlag status           = 1 [(nanopb).int_size = IS_8];
+    uint32 id                   = 2 [(nanopb).int_size = IS_8];
+    uint32 packet_num           = 3 [(nanopb).int_size = IS_8];
+    uint32 hr                   = 4 [(nanopb).int_size = IS_8];
+}
+
+message HrPpgPacket {
+    StatusFlag status           = 1 [(nanopb).int_size = IS_8];
+    uint32 id                   = 2 [(nanopb).int_size = IS_8];
+    uint32 packet_num           = 3 [(nanopb).int_size = IS_8];
+    uint32 hr                   = 4 [(nanopb).int_size = IS_8];
+    repeated uint32 ppg_data     = 5 [(nanopb).max_count = 36];
+}
+
+message PacketStatus {
+	// Estimation of RSSI of the LoRa® signal (after despreading) on last packet received.
+    sint32 signal_rssi_pkt      = 1;
+}
+
+message GatewayInfo {
+    uint32 region_id            = 1 [(nanopb).int_size = IS_8];
+    bytes gateway_mac          = 2 [(nanopb).max_size = 6];
+    LoRaParameters radio_parameters = 3;
+}
+
+message HrPacket {
+    GatewayInfo gateway_info     = 1;
+    oneof packet {
+        HrOnlyPacket hr_only_packet = 2;
+        HrPpgPacket hr_ppg_packet = 3;
+    }
+    PacketStatus packet_status    = 4;
+}