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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)
5 x& z K+ Z- L1 c+ H- #include <ESP8266HTTPClient.h>
) n6 E m3 [- x. j- g# X% Y - #include <ESP8266WiFi.h>1 }0 m5 P. L$ n, H: u! f" B
- #include <ESP8266WiFiMulti.h>3 v/ L; b2 M& j2 p- M, q& Y
- #include <ESP8266WebServer.h>6 _3 U6 e9 w3 ]1 P
- #include <arduino.h>3 p3 ]' h- N. j2 E
- ESP8266WiFiMulti WiFiMulti;+ |& ^( p2 n* i* q
- ESP8266WebServer server(80);) p7 C& f; z1 m3 O: v5 f
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";6 l! E* L) p3 Y' T; P, r2 R. N
- ADC_MODE(ADC_VCC);
: f" [2 `1 W y# i - void setup() {
' ?! n/ d9 p! i8 d) M, ?: T - Serial.begin(115200);, }7 k* Z3 d# S3 z+ S4 I+ y; Y$ H1 Y4 p
- Serial.print("\r\n\n");# q: r5 A$ c x5 {1 {
- pinMode(2,OUTPUT);- D+ G" F) E' a9 ?
- // WIFI4 Q0 b. Y& f" R3 c1 c1 d
- WiFi.mode(WIFI_STA);7 ?9 {2 @0 J4 Q; n' o# \+ |
- WiFi.hostname("Sparkle");. L/ a6 F X2 Z, A! `% b
- WiFiMulti.addAP("wifi ssid", "wifi password");; d) p" a6 ]3 B1 ^( R( {! C- N
- int tryNum = 15;7 q5 E* n z, G
- Serial.print("Connect WiFi");5 O! x# `( A/ G! F% X6 d; w$ C
- while (WiFiMulti.run() != WL_CONNECTED) {8 b. V- B8 P! d* w: C5 }
- digitalWrite(2,0);
% u9 N4 h1 ~" W; m7 d3 u4 L - delay(200);
8 K: ~+ h) G4 r4 T0 \$ D - digitalWrite(2,1);
* X/ t# L! [' t! _* A - delay(300);
@9 L3 G, U: k5 n. x - Serial.print(".");* I z! U, p' C5 k1 c) |
- tryNum--;
/ J' ?6 c1 C6 b, n" F - if (tryNum == 0) {/ @* ~. w0 d9 s
- // 1min
9 s- |# @, z9 }% n/ _( H7 |. x - // ESP.deepSleep(60e6);& a' k' k1 m. I2 V# }2 T9 Z& W! G
- ESP.deepSleep(0);
8 r/ b! ?5 N2 Q. R - }
' B: u+ R" ?2 f Q' A3 C7 u - }
- o# R$ y% G. ^6 w; b - Serial.print("\r\n");
' v5 j) U$ k8 c4 A) p* h4 ~9 g - digitalWrite(2,1);
' Z/ R. L; Y' ]* Y% n6 e. Q - Serial.print("IP address : ");
: g7 ?2 S, K2 ]) Q7 A - Serial.println(WiFi.localIP());0 t1 \) A2 G' ]* d- I, Q
- server.on("/", HTTP_GET, [](){8 a% D1 ^. {6 S, H [% i
- server.sendHeader("Connection", "close");
( {; u% K# c& `% D" M' b P& d - server.send(200, "text/html", serverIndex);. ^% g" f- d8 F# j! c
- });
, s# V. B- A3 r7 }. j2 M1 K! k - server.on("/update", HTTP_POST, [](){
( U% K0 C7 a7 x- K# s1 R8 { - server.sendHeader("Connection", "close");* X! ~% K6 ]- X. Y# m. n
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");( d1 d+ W2 i0 f' m# U: w& r0 u! v ^
- ESP.restart();. }7 p4 n! S* ~. b$ s
- },[](){9 o9 d6 n0 x( h1 W# @
- HTTPUpload& upload = server.upload();
g r* {0 p9 y' K - if(upload.status == UPLOAD_FILE_START){
$ a3 E% ]1 z/ y+ L/ x - Serial.setDebugOutput(true);
: d1 G; n3 e6 u6 I, W - Serial.printf("Update: %s\n", upload.filename.c_str());
% K6 c3 v9 A% k3 a X - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
' `3 j" N5 f# N/ l - if(!Update.begin(maxSketchSpace)){
7 R% T* c# o1 Z" ^1 l - Update.printError(Serial);9 z* h3 ]0 }5 m/ l% ^% o
- }
0 l/ y, I. b) _# A - } else if(upload.status == UPLOAD_FILE_WRITE){# D+ a5 ~5 `" U# F( j+ V
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){1 h5 D9 A4 P, g0 R7 F
- Update.printError(Serial);# ]( j" F2 p2 V4 q: e
- }
1 ?: n8 R! Q$ p" H; H8 U - } else if(upload.status == UPLOAD_FILE_END){
' y6 x- s N/ h9 x& k9 r1 e - if(Update.end(true)){1 Y0 S5 g: Z/ O4 m8 [
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);7 `& @1 z6 V0 x* Z& s
- } else {
- \. s; v( b# i; S - Update.printError(Serial);
" r' p0 T6 ~" @$ c1 p: J0 o - }
6 `4 e0 P! ^+ x - Serial.setDebugOutput(false);
0 a8 W3 G. b2 } {6 ? - }1 }1 p/ r1 e% j+ C. z3 e
- yield();$ a. ]- f$ O6 N, F/ r
- });1 B( J6 U) r# b9 c% l- i
- ( r! K+ l0 G, ?
- digitalWrite(2,0);
- {, V& y% Y0 a- t4 J) }0 C. S$ Z - mainAction();5 `( T& _8 ~/ `9 F7 d- F* @: T
- if (digitalRead(0)){3 s G( f0 O$ ?( @ k, U$ z) w
- ESP.deepSleep(0);
, k- q( \! k1 ?) M - } else {
- O8 f$ V0 [$ q - server.begin();
, Z( N- A' q5 y/ U3 d' o# E% c. U - }9 s9 f2 d# I p- D% u
- }! w. W2 n% R9 b
- void loop() {
1 Y: P: Z8 w1 n% d; @" @$ W" u! r% n - server.handleClient();
0 K- }; C" U$ _, `0 G! p - delay(1);
- Q e- X. B' N" T$ C$ h - }# \* P; X8 O1 Y! s1 h
- String doGet(String url){! L0 o: v! K, `
- if ((WiFiMulti.run() == WL_CONNECTED)) {
5 h D) Q+ M. O1 F$ D$ C0 b - HTTPClient http;$ H3 r; d7 S3 n8 w' h
- Serial.println("[HTTP] begin...");( n9 h& Y2 y9 f
- if (url.startsWith("https")) {$ W! g$ i- ~& }( A& j# ^7 [$ {) i
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");; E9 r8 D* I1 r! p. I2 d2 T/ X* w
- } else {
: g, m- t9 |1 l6 V - http.begin(url);
; ?+ j+ t% ?: L( ~3 ]' n! k" f - }4 z5 W) x3 g* n" v9 c3 r& l$ l
- Serial.println("[HTTP] GET...");
8 o* V! b5 u. F; u4 z! ~% a" _ - int httpCode = http.GET();- k$ c) Z, l i! e7 f& X
- if (httpCode > 0) {8 s \0 l0 D6 v& l+ V
- Serial.printf("[HTTP] code: %d\n", httpCode);; W7 P0 n* s# K5 ^1 f7 p1 {$ W
- if (httpCode == HTTP_CODE_OK) {" m. L6 k* z1 r b1 [) p% _
- String payload = http.getString();# {7 Y8 ^# E+ ]
- Serial.println(payload);
9 e' l/ ~/ Q. {" d" j3 @ - Serial.print("\r\n");2 a; N2 T. J; R7 n
- return payload;/ o/ ~/ S9 U- o3 n% X. ~; h
- }
" t/ v [* p/ ~9 j% p - } else {+ E) u i# D. U3 K, a! X* O- e9 h
- Serial.printf("[HTTP] GET... failed, error: %s\n"," x: i4 k w1 t! N( {- _
- http.errorToString(httpCode).c_str());" k! j5 C2 g! C% O# [) x$ j/ \
- } j1 p v' o) U7 ]1 U5 q
- http.end();7 S3 U! V! L; c l
- return "";
+ F/ [# |+ J" n8 K) @* x D - }
# E* @+ b! n6 ~; M0 w - }
2 U7 H! B2 k7 ~; u - void mainAction() { h# w4 d+ |5 g% q- T; ~: w
- // 发送请求
$ b' G7 A. A E J1 Y% h! ^% w. n7 D - doGet("http://google.cn");/ ]& V) d: o8 p! Z* Q
- }! }+ ` l& Y9 I b) X
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