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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 ]) L5 s; W8 E/ Q+ M8 X+ S
- #include <ESP8266HTTPClient.h>/ k) @8 q2 L% x4 a. i
- #include <ESP8266WiFi.h>' P2 w/ d7 y$ B! Q; m
- #include <ESP8266WiFiMulti.h>
+ }- v) O) H3 X. U$ Q& J - #include <ESP8266WebServer.h>$ r/ ~8 s. ^. S4 I! t( D o1 I1 r% l
- #include <arduino.h>
* P; N$ N7 T0 m0 x - ESP8266WiFiMulti WiFiMulti;6 ~6 B$ A4 I# V8 ~% O5 {; q
- ESP8266WebServer server(80);1 T! a% }; `: A5 w' d
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
& ?1 Y2 o! M6 Z( _7 n* X) n2 S - ADC_MODE(ADC_VCC);
2 T' ~+ K2 K/ H: ~0 K3 v; t$ G - void setup() {
5 J! f% a6 H' J; ~! ]2 w- B/ u - Serial.begin(115200);
( v$ o( u3 e$ o: U: O w. H - Serial.print("\r\n\n");
/ v+ l# ~3 k4 V6 U8 _% q - pinMode(2,OUTPUT);
1 @2 c, W# K I4 ^( J - // WIFI6 f' c: Q/ g# o# ]9 i
- WiFi.mode(WIFI_STA);3 Y2 ^$ u4 _, o. L9 T \
- WiFi.hostname("Sparkle");
0 | Y8 s$ o$ H5 A9 V - WiFiMulti.addAP("wifi ssid", "wifi password");
9 r& N7 |+ A! Q% N6 l; z - int tryNum = 15;
# R, k3 N9 Z+ w3 |3 d1 y - Serial.print("Connect WiFi");
4 ?4 ~5 p/ v% q, P1 ?# ]7 A* ] - while (WiFiMulti.run() != WL_CONNECTED) {0 i! }' q" p y. B
- digitalWrite(2,0);: W* Z; U7 y$ G3 W" `+ H- ?" L9 F
- delay(200);
' Z, g& ]9 `8 ~ - digitalWrite(2,1);2 a/ p/ N8 b( l A- g
- delay(300);
" a/ [$ T) _9 r; O9 F2 v - Serial.print(".");+ M) G$ S5 z3 c0 o1 E$ Z
- tryNum--;- C' \ k' L% d3 c2 i
- if (tryNum == 0) {
7 R" ~4 m2 K& ] - // 1min' t. c9 v3 ]) |5 D3 V. T7 b) H9 O
- // ESP.deepSleep(60e6);: Q* c( d) j: x: Y( ` @- k
- ESP.deepSleep(0);+ m: b, k# H) b. t- w# l0 i+ G
- }
( n7 [& r/ B- D* _: M( a - }; o" h6 r+ E4 K/ o! ?
- Serial.print("\r\n");) E! }$ C7 w3 V9 r! b( z; ~0 n
- digitalWrite(2,1);* y! J2 ^6 A+ r0 s
- Serial.print("IP address : ");
# }& Y8 J9 M' p7 N7 l% ~ - Serial.println(WiFi.localIP());
/ t+ N7 E0 o* G- ]; c' B' G - server.on("/", HTTP_GET, [](){+ k% c+ [3 ^' Q5 I# x
- server.sendHeader("Connection", "close");+ {$ ]/ q( K) P' ]% S, {
- server.send(200, "text/html", serverIndex);
4 @% ~$ h( J6 z1 @1 J - });0 C; t) ]1 p1 i( g2 C
- server.on("/update", HTTP_POST, [](){' a! _' `$ I0 [( U* y
- server.sendHeader("Connection", "close");3 F4 ^. h1 G; m! Y
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");4 Y3 d0 Q" C+ j7 r) k
- ESP.restart();( H, R; t; a& s# E
- },[](){
: t3 R1 k, w# j- K0 H1 S; ] - HTTPUpload& upload = server.upload();
6 Y& _6 j) ^$ b - if(upload.status == UPLOAD_FILE_START){0 e9 P6 k9 D* w4 n4 Q
- Serial.setDebugOutput(true);
8 }- ^, n7 x, P; }3 u. @. M - Serial.printf("Update: %s\n", upload.filename.c_str());8 m% Y W/ r; o
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;& T! q! R o7 R" l0 h
- if(!Update.begin(maxSketchSpace)){
; l P& N9 A. B1 y" D8 a - Update.printError(Serial);
+ `1 H3 y5 M4 \% b. x - }
0 F R8 y$ d# K - } else if(upload.status == UPLOAD_FILE_WRITE){
& C7 \$ V* ^8 p2 K4 j0 J) H - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){; z! }$ f0 L9 a0 V
- Update.printError(Serial); ?" R/ S5 o5 R# p1 O" r
- }
# w7 _/ U/ e! @, y* s - } else if(upload.status == UPLOAD_FILE_END){; J( A3 T4 `6 Y' a" w9 M; l
- if(Update.end(true)){
' ]9 y) v9 L) W& K: q - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);! g7 @5 g7 M6 x9 n, D0 \
- } else {. H( \9 q( \: I4 h" N7 R( {; r; l
- Update.printError(Serial);& @ s# K. B( H) g
- }) [1 k& E6 e; _# f
- Serial.setDebugOutput(false);; ^! @9 {) {4 L5 s* ?1 D" K! C2 ^
- }
1 n# g( l' C5 [7 ~# O( }! l - yield();
" a8 u: X$ [" S# P _2 l& ]8 X- p6 a - });
5 F$ k4 E2 h' {/ ? - 4 Z Q% s3 `8 W8 m t
- digitalWrite(2,0);
9 [. _/ X, d5 M, { - mainAction();
4 g, q+ \; u/ ~, b y$ R - if (digitalRead(0)){. x1 f8 U5 ^* |- |
- ESP.deepSleep(0);2 z/ B+ ^* ? N7 q
- } else {
/ S) Q+ ?/ @. U: ^) d, o2 | - server.begin();
# U$ S. C+ g, E( Z3 _ - }$ Q4 `/ I6 s' X
- }
/ h/ c% O2 C" z - void loop() {
) E: g q# o/ H: L - server.handleClient();* a0 I, @- R7 ^* T6 r3 d
- delay(1);1 M% u% z. w, v9 r1 j
- }
% T8 Y) j! ]% ]& U. z' t+ d0 {' U - String doGet(String url){
4 \) }' K* Z9 ] - if ((WiFiMulti.run() == WL_CONNECTED)) {" P* L6 x1 v* v1 t
- HTTPClient http;* W/ I% H/ e# L3 p- r( Y z$ x
- Serial.println("[HTTP] begin..."); L* j+ l( ^: b- z8 y# O; z% b3 m8 M
- if (url.startsWith("https")) {
4 u- _# F5 W8 S- z9 j* \* c - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
/ |. {( u8 R: W9 u+ M9 {% D - } else {
# t/ n' A) Z2 k- I& x - http.begin(url);
! \( y, s* [! n% T( A* b - }
- K Y* M7 L9 } - Serial.println("[HTTP] GET...");' k! y) `6 q& L) g+ S6 P
- int httpCode = http.GET();. c) e: v- L) m1 N1 k/ X. b
- if (httpCode > 0) {7 w# ?( E0 y3 l5 \' x) q6 ~
- Serial.printf("[HTTP] code: %d\n", httpCode);4 ^: ~0 I; O& M; Q# g: M' {( ?
- if (httpCode == HTTP_CODE_OK) {
9 e: S! [) T- D- N* ^8 O - String payload = http.getString();1 N2 W7 T- z0 [5 Z3 N
- Serial.println(payload);1 f" c* X8 \: k9 Q3 Y% B- `
- Serial.print("\r\n");' Z8 r( o( l# F
- return payload;
3 ? I$ c4 H: A1 b% q& F - }
7 y6 H- D# E* R+ L5 _ - } else {$ q: [ z1 Z7 G
- Serial.printf("[HTTP] GET... failed, error: %s\n",
/ g& j. r/ a% P( @ - http.errorToString(httpCode).c_str());5 z3 {: p8 k6 J; u& N
- }
5 Y) Y$ s) f/ J' B% ` - http.end();& Y) L4 ?$ N3 Q% u- k
- return "";( g! n* |/ _) d
- }
- l# g7 e1 t9 n) Z5 ^9 H: |3 t1 J - }
# _/ b" j( C+ P/ D. m) c1 Y3 z* ^ - void mainAction() {+ V, c) m# m5 [. x5 C+ N
- // 发送请求2 S: D* N6 T7 I6 V `+ T' k
- doGet("http://google.cn");5 D! j2 q Q& ]0 p: b! n' e
- }
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