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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)
8 O0 q" n6 J4 s. p9 v- #include <ESP8266HTTPClient.h>+ K! [, U& s- E
- #include <ESP8266WiFi.h>
3 _ y! s M0 D: P% ?0 J7 L i( k - #include <ESP8266WiFiMulti.h>
J# r) l- U7 V* ~2 M0 P - #include <ESP8266WebServer.h>, _" J( N( U. d$ e
- #include <arduino.h>& M/ [& U) C% D& N# S* {9 T+ q
- ESP8266WiFiMulti WiFiMulti;
4 b/ G9 ]7 A: m - ESP8266WebServer server(80);7 f. f5 p0 D) z7 s1 r! c
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, X2 \# K- T+ m4 R- E9 i - ADC_MODE(ADC_VCC);
- {/ p( y4 z, J5 l - void setup() {
+ F# n+ |/ Z* k8 O0 O! W% G - Serial.begin(115200);: ~, c n+ I8 M/ y, ^" ^$ @
- Serial.print("\r\n\n");
/ s7 X+ N" ?$ n! U V( J& N - pinMode(2,OUTPUT);+ R& y m) p/ k3 w, G' |& L: g- F
- // WIFI3 M' p; K! |- z( A8 Z
- WiFi.mode(WIFI_STA);! r6 s' L) a7 k/ Y/ ~! X
- WiFi.hostname("Sparkle");: i2 K! D6 b9 Z; ?
- WiFiMulti.addAP("wifi ssid", "wifi password");6 e# Z! s2 Y+ h! r1 w$ G
- int tryNum = 15;
3 q0 @! s7 E1 ^: V2 ^- v - Serial.print("Connect WiFi");
4 A/ I; n* K: b - while (WiFiMulti.run() != WL_CONNECTED) {
% o; a. g2 j; O - digitalWrite(2,0);4 }2 Y* I! ]6 L( ?& X6 ]8 _
- delay(200);) k5 P b# @( a" c R% ~
- digitalWrite(2,1);
0 e6 i/ D8 X2 h6 K - delay(300);
5 c( m* b% p& j# d4 U+ N - Serial.print(".");
5 e: T5 V4 @' w8 m! l - tryNum--;6 \! l% z7 u# A# v n- y( }
- if (tryNum == 0) {
" d/ w7 D- b" ~" V% o2 [5 J9 k - // 1min. {5 U* R3 q0 F$ h* E7 G! x- t
- // ESP.deepSleep(60e6);
5 h; u! z5 q: Y* q) D9 p$ t - ESP.deepSleep(0);
) z. p2 V9 t% l# G8 w) J- j - }; @7 ^- ?7 U) c; G" X% I4 ^
- }
' A7 p& ~! O$ g' z - Serial.print("\r\n");
g, X( q7 c: Q7 S0 g( z - digitalWrite(2,1);
5 x3 B& b7 b" w7 T; k8 g7 m - Serial.print("IP address : ");4 s9 s( L: t. F- x
- Serial.println(WiFi.localIP());. n$ o4 R; \2 z7 m( A
- server.on("/", HTTP_GET, [](){6 P+ Q) r! S# H- X( H0 b
- server.sendHeader("Connection", "close");
8 J8 O' G6 q7 G0 G - server.send(200, "text/html", serverIndex);
9 }( |* J" J( y; c( N$ D2 Y - });
' P+ E9 f; f t# |2 h9 Q - server.on("/update", HTTP_POST, [](){5 ]- r) N9 A: w5 h# b
- server.sendHeader("Connection", "close");
2 l! q- ^0 g5 u8 n$ A- N - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
$ _1 b3 |( |- k& V) K/ H: E - ESP.restart();
! i7 t& b8 S7 [( l4 }: b5 Z - },[](){
# B, D0 C# E2 Q2 ^* L - HTTPUpload& upload = server.upload(); S2 b! `8 Q, x) p/ m6 b
- if(upload.status == UPLOAD_FILE_START){
5 B' P$ y5 Q! m7 j' z3 n) A - Serial.setDebugOutput(true);% J2 z7 w" |5 q& F7 |% D8 U
- Serial.printf("Update: %s\n", upload.filename.c_str());3 z- i# X4 o: n3 \. P! H
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;% M4 L8 @5 \. W& U3 H9 A8 j# z: ]
- if(!Update.begin(maxSketchSpace)){
/ a3 T9 N$ `6 x3 H# F/ |+ R - Update.printError(Serial);! |" P' ?! Q* _, K/ A* v; K9 X
- }3 ?4 S. o+ Q5 [4 ]: S9 G* L
- } else if(upload.status == UPLOAD_FILE_WRITE){) y" q: d" _: ?! m. V2 B
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
% ?* O% j/ C( z/ W1 o - Update.printError(Serial);
/ ]- F6 Z# U# _" J9 h/ M: y - }
6 W! U* V* ~- R+ E1 A- p - } else if(upload.status == UPLOAD_FILE_END){7 a6 t) L% a8 i5 x2 p8 q
- if(Update.end(true)){
7 u2 J% P+ u$ f5 F! \ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
0 G2 `9 Y- L8 R - } else {: k/ K. B! u1 H( q5 M
- Update.printError(Serial);: A! v3 R) ], y& j, f9 T2 F( |# W
- }
. \! |: g! o5 O8 r$ w# F6 J - Serial.setDebugOutput(false);9 s' z+ {) o! J. W
- }
/ d1 j' B! X: }& c - yield(); N/ w' ], l# y6 n5 M5 |# U7 g* k
- });
: @# B) ~# ~! i3 K& e -
- ]& \- V/ d. o( v r3 i( O2 ^ - digitalWrite(2,0);3 u0 [, K& j- f5 O! o" s$ q
- mainAction();- t- B3 `0 r) n. T5 R% Z
- if (digitalRead(0)){# y% O* N0 k3 S3 ~* l
- ESP.deepSleep(0);
& z/ t4 u; A: D- i& t: q% E) K3 u - } else {. D7 w9 z9 @) C: o' O
- server.begin();1 W' E# K6 M" V/ K& s6 }# q
- }; s: C" N8 D1 f! _9 q4 b" I
- }
" ]4 x6 I6 \$ h5 v# r( N) X3 K - void loop() {
5 Z m( }* g3 p4 \6 R1 R4 ^1 h - server.handleClient();( W2 F& t- p3 }/ w( d* q/ C- @8 \
- delay(1);6 e8 N+ {, x% D# N
- }5 C7 \& [/ K4 y# s
- String doGet(String url){- O9 v2 c/ h: N k
- if ((WiFiMulti.run() == WL_CONNECTED)) {2 m$ \, m. y0 e
- HTTPClient http;- e1 q! R! F8 }+ A7 m8 L
- Serial.println("[HTTP] begin...");2 R" w- ^1 ?; R/ H" j7 j: E+ x
- if (url.startsWith("https")) {5 Y) r- ^7 G( y
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
9 ]9 L9 |: o; X' c - } else {% A7 t5 W+ h& ?7 \# R u, t! I
- http.begin(url);
1 ]4 ~* G( a) Y - }
* j$ K8 e% |" E$ A: c2 ^. A( V - Serial.println("[HTTP] GET...");% {4 x2 s/ K1 l) d
- int httpCode = http.GET();" y/ [: f! C$ v. V1 `
- if (httpCode > 0) {0 [+ K# ~9 x/ X4 O3 f& c1 X" P
- Serial.printf("[HTTP] code: %d\n", httpCode);7 f2 E j' O6 I6 s6 ?
- if (httpCode == HTTP_CODE_OK) {# {5 R8 U- F/ E# R% f
- String payload = http.getString();
1 n' A4 S1 }! d; I - Serial.println(payload);5 h, K4 ?; Y3 t& A- X
- Serial.print("\r\n");9 v/ ]4 [" {& u* A9 b3 m% ^0 k
- return payload;4 L3 ^& O- v! a! K1 i
- }
( Z7 L5 l& _% `; Y - } else {/ c& f; S7 H. f, ^' p
- Serial.printf("[HTTP] GET... failed, error: %s\n",
! ], f" E; u+ p5 Z - http.errorToString(httpCode).c_str());
% V9 T1 z- d2 M" C - }" t8 U2 E6 h5 ?
- http.end();
2 W% w, }- Q+ ~/ U7 x$ L' q - return "";
% J& D( p# h" r4 O" Q( `5 b: u - }
6 Q g) g& ~- q' h - }. _9 l- z4 N. Z D' b" {0 w
- void mainAction() {
- h7 m' M7 x+ ^1 i5 {+ X - // 发送请求* r* }; O/ U; N9 N/ Q6 K8 |7 T
- doGet("http://google.cn");
5 n; I* k" t+ t - }
0 }7 G- D& M7 I" W, s Y1 f0 ^
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