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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)
& E/ J( O P1 V2 f/ K, x! x- #include <ESP8266HTTPClient.h>& D- S. Q% O0 E x
- #include <ESP8266WiFi.h>, b. n$ L8 j* O& }6 r
- #include <ESP8266WiFiMulti.h>& [+ u6 A _/ k# ~% Y
- #include <ESP8266WebServer.h>" X+ J7 `& {$ `6 U U
- #include <arduino.h>9 X+ _7 N' u5 |* E8 a6 b
- ESP8266WiFiMulti WiFiMulti;# Z5 ^, k9 O8 W4 h: N/ i
- ESP8266WebServer server(80);
5 M( C5 u( q; Z4 @6 g6 ?, i! Y6 ?6 R - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
! s; x2 n, B' F n4 { - ADC_MODE(ADC_VCC);: {) ]0 g1 s% m d$ x, h8 v* m# S4 f5 O
- void setup() {6 t( g' `8 g4 u# o1 F- ]
- Serial.begin(115200);
$ x7 E, }! s: W3 ]4 o - Serial.print("\r\n\n");
# \! E( n) j. Q2 J& k9 E! h - pinMode(2,OUTPUT);# ]3 f3 P3 g( H5 Y; |
- // WIFI
2 V) o# i3 P1 |. `0 _! \ - WiFi.mode(WIFI_STA);# [' u# R/ h$ E# [
- WiFi.hostname("Sparkle");
4 P D( |. Q, c S6 [ h# J - WiFiMulti.addAP("wifi ssid", "wifi password");, r0 B# [7 I" [0 K3 C
- int tryNum = 15;/ I5 `! U- V5 O9 a3 y5 P+ V( C3 ]
- Serial.print("Connect WiFi");
$ q9 Z- X* z7 A% V - while (WiFiMulti.run() != WL_CONNECTED) {. e1 [+ t5 c5 o' g0 l
- digitalWrite(2,0);
# W0 L4 k" p8 ^/ | - delay(200);
- }% ^/ b6 i! |8 p5 e" u( @) e/ B! b& W - digitalWrite(2,1);7 A3 l" U2 d8 i: P0 B
- delay(300); I- B% T& U# n0 w
- Serial.print(".");6 E. l, x% s4 Y/ a" F
- tryNum--; B# o' W' |3 b# d
- if (tryNum == 0) {8 g3 B! |! y7 q
- // 1min
0 L- b# d" Z/ p% x& G5 h2 J% v$ L - // ESP.deepSleep(60e6);
/ r% g" H5 V1 f- M$ } - ESP.deepSleep(0);
, F* z; j( M/ t! O - }+ G5 `! O9 D: X
- }. ^' y; @6 N0 }8 z2 G& v1 c
- Serial.print("\r\n");3 N! x2 F+ G# W j. M9 I3 e
- digitalWrite(2,1);
6 ]2 y" X+ ?0 T - Serial.print("IP address : ");
$ H4 B* r9 p- q2 ^ - Serial.println(WiFi.localIP());
8 S4 L0 G5 O* S2 s8 d - server.on("/", HTTP_GET, [](){- r# k/ v( s* m4 V! c
- server.sendHeader("Connection", "close");- N7 S: H# I; ]6 t7 F2 F- H
- server.send(200, "text/html", serverIndex);
# v+ s" C+ n; {8 x, Z0 ]0 Y - });
$ N; x- m6 z8 x - server.on("/update", HTTP_POST, [](){ B- w8 i, p2 W r
- server.sendHeader("Connection", "close");
* l! k0 ^+ m8 o6 V Y2 r - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
$ H0 {2 \; O$ q3 ~# K% T5 x) l3 m - ESP.restart();
& z* p9 y ~: A$ u - },[](){: c* f8 |$ r3 s0 n* R
- HTTPUpload& upload = server.upload();7 ?/ p! |. M: s, V/ g! d6 q& T8 g; s' s
- if(upload.status == UPLOAD_FILE_START){
/ M- G' u6 I! Q8 B/ k - Serial.setDebugOutput(true);
4 ]" p8 |. ?5 ~# u - Serial.printf("Update: %s\n", upload.filename.c_str());8 m9 t# e; m1 X6 W6 ?- V n
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;" H" b2 U& S, `5 a! k. V
- if(!Update.begin(maxSketchSpace)){5 _2 B9 X! u! e5 ?8 @% |
- Update.printError(Serial);0 v+ M) {) N( h8 G
- }
7 d# q# `% U5 F$ \. k$ q$ y- ` - } else if(upload.status == UPLOAD_FILE_WRITE){/ E D v* M a1 G3 u s A
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){0 C1 Q! H- u2 _/ t6 t' r. h
- Update.printError(Serial);
8 {3 t7 X2 L3 e$ K - }
4 D1 c6 I7 W8 D& ^4 c2 Y, H - } else if(upload.status == UPLOAD_FILE_END){/ {. O/ `+ Q) p1 r
- if(Update.end(true)){! n3 s1 Z1 N$ p- l8 M( y
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
( t) j- n: l: z3 U, B- x! B - } else {
$ n$ P2 t; | o. c T - Update.printError(Serial);. l. a3 Z) c& L$ g: O
- }. B# A5 Q% r0 }: a0 D' {8 N( n) C
- Serial.setDebugOutput(false);' B0 {+ `! W1 T% B( Y
- }
5 O) j& H" t6 `" o - yield();
% r4 ?* |8 d9 Y5 \8 }) q7 Z1 ` - });
: j( S5 \/ N9 Q9 g% ^) D5 @ -
2 {, N% Z3 M) A) w+ q3 E8 V - digitalWrite(2,0);
4 q1 l! I w7 w- j4 ` - mainAction();
M- q+ z, F6 `2 d' ?' F - if (digitalRead(0)){
4 }+ Q4 X, w8 I4 p6 D! ~- ? - ESP.deepSleep(0);1 ^, @# Z: T6 U7 h
- } else {
' z$ G" A8 |4 p" ]3 G% o2 ?4 G - server.begin();( w/ Q0 ~' P6 B. B4 x; I. V) L
- }& }5 f! |1 j* d1 F- Z
- }
# O" D: c6 Z4 ?/ _$ U0 A% l - void loop() {
9 a' ?% ]+ [7 K' I - server.handleClient();( u$ A6 [9 @3 `: x3 A, o! {# h
- delay(1);
3 {* I" H9 K2 M( o) p - }
9 e9 U% e+ _, S7 E r$ [. M - String doGet(String url){
, B( s1 N! T6 _& A: o" Q- b0 c - if ((WiFiMulti.run() == WL_CONNECTED)) {
6 J, t( w3 ^$ k+ a. X+ p$ B; Y, Z - HTTPClient http;
( @; C( C/ ]' d+ W, z* z - Serial.println("[HTTP] begin...");# Z" R: D9 x$ v* F, X5 P, ~
- if (url.startsWith("https")) {8 M7 I8 X* T8 R9 j5 M: \& ?
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");5 `' j7 ^7 | e7 y! o
- } else {6 i; G' K4 N2 C" M. G2 y. Y/ `
- http.begin(url);* n h2 g+ z% a% z* `
- }8 @' a! c* g8 G
- Serial.println("[HTTP] GET...");+ V& ~# {1 `1 X: Y2 [8 a& m
- int httpCode = http.GET();
% f3 s6 A! I; \* X5 `' \ - if (httpCode > 0) {( z6 s/ N- J- ]: Z4 m( B. S7 [: }
- Serial.printf("[HTTP] code: %d\n", httpCode);/ f6 ]) G$ N% c5 F( ~" x6 l
- if (httpCode == HTTP_CODE_OK) {
) K, m7 I, j, e6 | - String payload = http.getString();
4 q+ L9 e4 I! v0 s: n - Serial.println(payload);
1 D$ @6 K: w d6 m$ n* S ^ - Serial.print("\r\n");4 ?# P/ \' Q2 p* o8 c! x( d( l
- return payload;5 W) T5 q. p0 n! p
- }: S& z: f1 G. ~! x- {4 Z2 t9 n3 r
- } else {
n }9 ~2 `& C; n - Serial.printf("[HTTP] GET... failed, error: %s\n",
. K& G# a" f" V* }/ o - http.errorToString(httpCode).c_str());( A; C/ v6 u5 z3 f/ i
- }
5 n' j- I& L2 r3 z7 _ - http.end();' k S6 e; V! l1 p
- return "";# k) h h' |# O i; m
- }( N5 S) o7 ]% F5 G
- }" B0 E2 @; m& l1 U; q
- void mainAction() {5 j% k; z9 }7 [: O3 }' F- W
- // 发送请求
7 w# m) [7 x$ a - doGet("http://google.cn");
d9 K+ e; @, f" i: u - }
. E& ]: Q. M6 O7 q$ `
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