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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)
7 ?0 J: u" R: H* c8 K0 H6 T- #include <ESP8266HTTPClient.h>
6 B) S# U4 n6 B - #include <ESP8266WiFi.h>0 i/ E5 n: B0 ^
- #include <ESP8266WiFiMulti.h>+ D4 T, b; z+ a# g
- #include <ESP8266WebServer.h># K6 o- J) V. C+ D
- #include <arduino.h>( G: J: e9 D; N9 j" K$ K7 m1 N+ G
- ESP8266WiFiMulti WiFiMulti;
6 g- N" b r2 h$ O. |0 L - ESP8266WebServer server(80);/ r3 }4 x9 M% Y4 i) N, s
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";& H; }7 Q8 y/ _, E) h
- ADC_MODE(ADC_VCC);
; H3 g1 F, K. m$ Y6 E - void setup() {. Q: Z, T" t4 h3 C
- Serial.begin(115200);) d& X( |% j! L! b& L7 c; a
- Serial.print("\r\n\n");7 Q b5 r0 x4 ~0 r( p
- pinMode(2,OUTPUT);% l/ i; {6 m& U0 N$ Y& ]/ ?
- // WIFI
4 w! ?) l B+ k3 B5 w) |, o - WiFi.mode(WIFI_STA);
: G2 P6 y' o. m" y - WiFi.hostname("Sparkle");
8 ~$ O) `5 n) N; t5 m+ O - WiFiMulti.addAP("wifi ssid", "wifi password");
q6 K8 x8 O$ c3 _% V# T - int tryNum = 15;' x z: a3 j5 \, h; B/ I
- Serial.print("Connect WiFi");
5 y; ?. b; g6 x' L$ A1 f - while (WiFiMulti.run() != WL_CONNECTED) {; {) V$ N A5 p" u% {. x3 \+ s
- digitalWrite(2,0);+ |( z- e1 J; i4 `5 q8 i, S2 Y
- delay(200);2 q) p) k) Y8 O- {5 L4 h: v
- digitalWrite(2,1);, W% g: a6 Z$ A" t& U
- delay(300);: L9 P3 k2 x3 G) s, I$ d
- Serial.print(".");; w) I4 k( q% ]' H5 A: k
- tryNum--;7 o2 G: X( X& C) i
- if (tryNum == 0) {
. F0 @( i) B4 N5 F! h( T- W) y - // 1min0 |: ]# C8 n+ m2 J
- // ESP.deepSleep(60e6);
8 Q) x1 r) U u0 O- A3 w - ESP.deepSleep(0);
5 G$ z, d5 C+ d h* ` - }
, h% N+ c' f/ W+ L% B" ]' U - }
& W5 F) \6 e% }0 D. } - Serial.print("\r\n");
0 O3 @5 ~3 U3 `. ~3 w - digitalWrite(2,1);
+ ~; d4 T! B" P+ Z - Serial.print("IP address : ");
1 T+ \5 k7 V6 v4 u - Serial.println(WiFi.localIP());9 I% c) G# k* Q* i9 O
- server.on("/", HTTP_GET, [](){
7 d8 S# v- t: \3 `; [ - server.sendHeader("Connection", "close");0 s3 R0 C4 G3 b1 j$ R) Z# O9 b7 o
- server.send(200, "text/html", serverIndex); I0 `7 y2 M$ S( E1 r7 {& ]
- });
% L- O3 {% k9 Z/ N, M1 O. N: j& Y - server.on("/update", HTTP_POST, [](){0 z! S0 w, b7 t; _+ g- c$ v
- server.sendHeader("Connection", "close");% Z% j! v- K3 S% ^' m7 i
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
7 R4 P2 G* M, l - ESP.restart();
" D- [- y* a- R @3 `% Y - },[](){
7 _9 Y, E8 i! M: V - HTTPUpload& upload = server.upload();
! I( E) j& ]* ?1 o9 r2 P# Q! _ - if(upload.status == UPLOAD_FILE_START){
, s4 F3 `/ z, k) Y6 I! d - Serial.setDebugOutput(true);2 Q5 R* a+ x9 |+ K; S( D
- Serial.printf("Update: %s\n", upload.filename.c_str());. L; M3 I% Z2 C- K
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
' ]8 r# ]3 n+ d q - if(!Update.begin(maxSketchSpace)){
/ ?! \% g. ?5 p6 Z0 @0 f& b5 ? - Update.printError(Serial);9 m" P3 N2 p2 T$ y" d
- }( J/ B. K' Y: z# ~
- } else if(upload.status == UPLOAD_FILE_WRITE){1 g$ t8 r% Y; ~: O
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
( _$ s `0 F( N, r! K. }) F$ _: w - Update.printError(Serial);! s- c% g0 E7 D
- }1 p* X# x1 g7 a" Q; u* x' {
- } else if(upload.status == UPLOAD_FILE_END){; d# A6 F% b* m# f& \: U
- if(Update.end(true)){- {. F3 h, z: f% H5 s' m
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);7 p$ \ v! l3 P3 a( l7 H2 j
- } else {
- T: r7 p3 u, [8 r. W$ M - Update.printError(Serial);
; m# h* m) T5 M; w9 [ - }
! c, q0 F) X7 b1 C7 o3 J8 y( V - Serial.setDebugOutput(false);
' B: ?. N! I- D# l9 @0 i: p/ R2 m - }$ v3 H4 Y4 x) Z, ?9 z; D0 R2 \
- yield();
2 k) d( K) y- D- B! N" j" H+ i$ V - });
/ a T% p7 n" N0 N -
. k7 C+ s6 a* g" D6 f9 b5 z H" R6 A - digitalWrite(2,0);
1 x0 `: j3 ~3 o# a: ?: \ - mainAction();8 d, o3 `3 Q9 y2 p) U3 J
- if (digitalRead(0)){
4 U; U* p1 N: ` U - ESP.deepSleep(0);9 Z2 a, m; e3 G- E9 _0 s, U0 r% e( E
- } else {" @7 Q) }- D; V% a& z
- server.begin();" \. k, r1 @5 o6 ]2 ~
- }
- Y2 H2 ~9 L' a8 b4 m1 h# C& e - }( A1 v8 p# n0 q6 l6 L: f
- void loop() {
% C X7 A: D- |; p6 y4 Z4 E$ f, x- D - server.handleClient(); z9 F8 c) f4 Y0 D7 C
- delay(1);
6 B! `' N1 c( ] - }4 ]6 F# L* X, X0 h/ E
- String doGet(String url){9 W7 y; d/ ~ S! K( T" z
- if ((WiFiMulti.run() == WL_CONNECTED)) {! Z7 I3 S5 P9 U& Y# F
- HTTPClient http;
5 O) E2 G8 ^& l5 f1 p - Serial.println("[HTTP] begin...");
F- ]. ]6 t9 b% F: i* @6 [ - if (url.startsWith("https")) {
* b# _! Y2 ^% _ g; V0 _7 S - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");9 p. c. k8 V5 c0 O+ B z
- } else {0 n6 w4 B; U% S# n
- http.begin(url);
* n, H# C8 d) V- N - }
7 i2 A' a- y; ^ - Serial.println("[HTTP] GET...");2 q0 l6 g1 x8 ^! p! z$ s; M
- int httpCode = http.GET();
1 m( K0 O6 U6 s" T& q+ t - if (httpCode > 0) {
! [: }$ s; ?8 `) Q& U - Serial.printf("[HTTP] code: %d\n", httpCode);
! P( x6 h" ^% d: `! T - if (httpCode == HTTP_CODE_OK) {
# v/ D4 a# D Q, @2 t% w - String payload = http.getString();
6 p7 a8 P5 Q* [) I9 j* O - Serial.println(payload);% U& g8 a W( k6 S
- Serial.print("\r\n");
. W! L% p' e5 P* E! n; j - return payload;4 B! A; C# g3 R0 M; h% E
- }
X! r' E' F; F5 `* Z. D - } else {+ `7 y0 i% V! P" }8 ^! @, h
- Serial.printf("[HTTP] GET... failed, error: %s\n",( D- v1 o4 f" P5 h7 I% H
- http.errorToString(httpCode).c_str());
" |8 o. J* N- P0 X/ h; A# C' Z w4 K - }0 S, D4 o$ g+ w& q$ C
- http.end();2 m! g' q }4 N0 q# t `! w+ i
- return "";% @+ v8 ?' w, {- L% h; _8 k- a
- }' ~" p5 H8 I5 m* `6 K$ V7 q
- }
- k! N: ]$ `- [6 v) h- F - void mainAction() {
/ p/ ~ p i& }. T! }' N% Z - // 发送请求
' Q$ L. s# U, ^0 |4 Z; {. ` - doGet("http://google.cn");: Z8 N9 V) J3 |3 s
- }6 {8 U& Q& p- q0 v
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