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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)
0 T' b2 u p9 [, z4 a( M2 {3 t- #include <ESP8266HTTPClient.h>. {4 D# d' \/ { }
- #include <ESP8266WiFi.h>, i' i S6 E7 ~. w% t8 ]
- #include <ESP8266WiFiMulti.h>+ ^! u' w7 M2 E/ y
- #include <ESP8266WebServer.h>- }- q k: l& S* T8 ]2 d! u6 M
- #include <arduino.h>
) Z6 L [, D7 a, {" R0 i - ESP8266WiFiMulti WiFiMulti; j+ V+ K1 w5 X$ q0 e& w
- ESP8266WebServer server(80);& N5 q/ L8 X) Z/ W4 y1 W3 y! t
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";7 y8 n1 v+ \% V2 m |3 j
- ADC_MODE(ADC_VCC);
" e. S( v: X# h% n! T8 b+ v0 h8 @ - void setup() {
5 X6 U" G1 \5 S - Serial.begin(115200);
2 ?1 ~: h8 f7 x3 f4 I% O I$ W - Serial.print("\r\n\n");
. k9 c6 w6 l9 ~ - pinMode(2,OUTPUT);
2 A: ~% v8 C, i - // WIFI5 Q$ ?' P3 e2 i" w" f" ?' J
- WiFi.mode(WIFI_STA);
5 |8 r: y% v' _+ [1 E h - WiFi.hostname("Sparkle");
3 t( A. D& Z6 k0 p - WiFiMulti.addAP("wifi ssid", "wifi password");
! U0 B# V! Q3 ^- X4 I; Y( ~ @ - int tryNum = 15;: q3 W2 O) |; |3 `- B# `+ l+ |
- Serial.print("Connect WiFi");
2 c+ v( H9 X9 N( h% A - while (WiFiMulti.run() != WL_CONNECTED) {1 _5 ~7 B* t2 G* }
- digitalWrite(2,0);
r0 _" @ M X; E% @- C0 { - delay(200);
* p! c, i9 W$ L+ o+ h - digitalWrite(2,1);
% A) T- ]1 A( h! f7 c" H - delay(300);7 f) Z: H1 h4 w6 z8 a) R/ w
- Serial.print(".");
6 K8 }. @9 n8 Q1 ]* \ {) f1 S - tryNum--;% L8 ~) t' c5 E1 V! j
- if (tryNum == 0) {6 T& g; k5 |1 ?0 U: i4 U
- // 1min$ }7 }9 u5 ?( c9 `' f4 N) O
- // ESP.deepSleep(60e6);
! _6 w( z5 y+ B% r: `' z - ESP.deepSleep(0);
9 r- w& h( x, h6 M - }
. t+ e4 X9 B1 }3 E. ] - }
F+ u, @. Z. j' c) U, y3 N& f - Serial.print("\r\n");# w5 {- _2 S1 a5 R! W9 X
- digitalWrite(2,1);) F# N0 a& C, J' _* r; g3 j
- Serial.print("IP address : ");) ?: p- ~# d& ?: D
- Serial.println(WiFi.localIP());
1 d; k7 X5 |6 c ~& m3 P+ C) k - server.on("/", HTTP_GET, [](){
- ^' P: n, ^( l3 v0 J6 [& c - server.sendHeader("Connection", "close");" M* q+ J, t0 \+ v6 _2 Y7 U
- server.send(200, "text/html", serverIndex);
! c! I0 F6 P( a' A2 L* e2 F - });( n- P6 y2 G' ^' L- Q
- server.on("/update", HTTP_POST, [](){. I; m( i" o M% I, L1 C3 A
- server.sendHeader("Connection", "close");
3 ^5 J3 T3 L4 r% u - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
4 c! L$ n8 V2 N! X' ?: S9 w* b! r - ESP.restart();0 X% `+ p! F5 P/ b/ W6 c( I& k4 Q
- },[](){ e4 l# I! j0 a$ L% k; z
- HTTPUpload& upload = server.upload();
- q/ B. P" r: M& k5 P - if(upload.status == UPLOAD_FILE_START){* s* _* x# S' t& r' E
- Serial.setDebugOutput(true);0 \! L- U! I: S( T
- Serial.printf("Update: %s\n", upload.filename.c_str());- G; S( |9 q0 L: \7 G5 w
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;1 X8 P' L/ _: U, `8 o" B4 p" M _0 d
- if(!Update.begin(maxSketchSpace)){7 N! D% x2 ]; N9 t" `# T6 A3 c
- Update.printError(Serial);! E* `9 I! J* m2 f2 H! l( e
- }
+ D* n8 z+ q7 O5 t1 e - } else if(upload.status == UPLOAD_FILE_WRITE){# S4 R; t" j2 I1 Z$ \ R5 ?
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
4 [$ G' v' a/ I. z - Update.printError(Serial);
: f/ U4 ~7 [- Y, c8 V' v) z. L! X - }0 t) Q+ V5 {, T. b! q& n
- } else if(upload.status == UPLOAD_FILE_END){$ q6 p1 H( r9 ?/ R/ o2 j! T
- if(Update.end(true)){( w$ H! V+ W' o7 y) f9 ]4 m. b
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
# N% b4 [" G x* X9 J4 g - } else {- i! i9 K3 X& X3 d1 N' }; @% X( p1 x
- Update.printError(Serial);) c- k) ~, `& a4 m* ?
- }
3 |. b& P/ \5 d2 j& D# i( z - Serial.setDebugOutput(false);0 p& y; s- P) w0 X1 P% g
- }
& A0 h4 L6 M! t7 { - yield();
" \ P7 }- i* K. `/ l% g - });
& R2 L1 s, E( @, P2 k" W2 L1 v - 3 O* ~6 U. d- x3 I
- digitalWrite(2,0);+ l: ]3 H# {6 x5 q1 g8 s
- mainAction();
! x& ?: N. H0 Y1 ~4 ` - if (digitalRead(0)){3 P0 {( }. }2 A1 P
- ESP.deepSleep(0);
% h8 i2 q4 ]4 g - } else {
' k4 U1 [6 K5 ?: }! T - server.begin();$ |! c7 [& X- i6 @
- }0 ~. T7 [! v9 V8 A. b M
- }
0 r# I$ Z6 C0 l- X4 {' z% q, w - void loop() {+ H& @9 T5 g! t8 b+ Y1 K: ]
- server.handleClient();
+ U0 |4 c. b ]. @% r9 ^ - delay(1);
9 A/ T* h; A- u1 U - }+ X! c7 f+ F9 ?8 h. q- Y: o
- String doGet(String url){
4 r1 L+ X; T ?* n# D - if ((WiFiMulti.run() == WL_CONNECTED)) {
f, ~ @$ E) t% |! u& d7 N/ O - HTTPClient http;
. h$ a0 l( Z h# K - Serial.println("[HTTP] begin...");# l: m- C6 l& W# K
- if (url.startsWith("https")) {
' k) f3 c2 g( X7 w+ F2 f" { - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
+ @6 q" ?; p; l J - } else {
: C" Q* T' ~: n* k# U3 C% R - http.begin(url);; i) L+ Q" z/ H+ t' l
- }& r9 E$ u; w, O0 x, N% \
- Serial.println("[HTTP] GET...");! |: |5 C; c: U0 t7 k
- int httpCode = http.GET();' w, Z$ |: Z" N0 c
- if (httpCode > 0) {' }1 Y9 \; N1 S7 E `: _6 o1 f4 z; i
- Serial.printf("[HTTP] code: %d\n", httpCode);
! i8 Q9 {( m/ V& V( G - if (httpCode == HTTP_CODE_OK) {. X9 R# A% s: \& V$ Q4 R! z
- String payload = http.getString();1 e, t2 D6 g: [6 U) p$ a( J
- Serial.println(payload);9 t" y9 g# y9 ]/ ?2 P' W' I
- Serial.print("\r\n");0 p5 `+ [6 d' r& M6 Y% Z& `& }; B
- return payload;
; W5 e7 }% d( E - }
. U& o! S! y8 P" x0 v8 i! Q% f - } else {
, j t) j' a, E2 b. W* F6 C - Serial.printf("[HTTP] GET... failed, error: %s\n",- ]/ j5 K5 G: F' }$ p( h+ k
- http.errorToString(httpCode).c_str());1 o1 ^( `# E1 O/ E/ R
- }, Y6 e. R# M! o. u' B
- http.end();# b; w' m) w7 W
- return "";1 }) U2 g/ X1 |9 n5 B
- } i# }& @; F& F) T
- }
* s6 U* n" D! x8 R8 b$ i" h$ F( Z - void mainAction() {$ {; ^$ J" M+ X5 Q+ L- H- Z
- // 发送请求
; G: ?4 z( r: A - doGet("http://google.cn");* h# @2 O! E; L5 w
- }
3 O, Y: T+ v; F! z, ?. b1 B$ Y
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