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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)* U; L- ?+ x; x! s
- #include <ESP8266HTTPClient.h>
0 A- W* |: F2 D& Q& j$ A9 W( p( |. w - #include <ESP8266WiFi.h>
$ f K: B( X( d' g2 r2 p - #include <ESP8266WiFiMulti.h>, M: {. e- ` ]2 p- Z2 u# D& ]
- #include <ESP8266WebServer.h>% z* Y( y6 E. s
- #include <arduino.h>
7 G: p$ ~, ^( w2 w - ESP8266WiFiMulti WiFiMulti;6 O; O: Q1 S F- o K
- ESP8266WebServer server(80);7 K1 @! B8 E3 Y) I! G+ L: V$ c2 K7 T
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";" q( }* p. r5 u4 |; e2 K# v
- ADC_MODE(ADC_VCC);
) i# S7 J' o# H5 @ - void setup() {; H3 M1 P. c3 m8 d, x5 f& A3 }; y1 Q
- Serial.begin(115200);
; h' g: ~" w! P - Serial.print("\r\n\n");
) L% [: f2 J, D T$ {4 | - pinMode(2,OUTPUT);* c% P, t2 D2 e
- // WIFI
( U" e) f( z. e, F- b+ ~$ i - WiFi.mode(WIFI_STA);
: K; G. ^2 |+ C( Y' ^8 c - WiFi.hostname("Sparkle");
& f" n: n, P7 B0 X - WiFiMulti.addAP("wifi ssid", "wifi password");
0 W! e) M2 U2 N - int tryNum = 15;
! F, |! G! ^8 J3 z4 a2 n - Serial.print("Connect WiFi");
8 u$ P* [. S8 f - while (WiFiMulti.run() != WL_CONNECTED) {
4 Z- @- N% F7 [% j - digitalWrite(2,0);5 s2 ~; ?) D: a+ r5 X( ~- Q4 U
- delay(200);
, V) f* Q8 D" C& c - digitalWrite(2,1);+ [* F2 X g- Y+ s$ X, q/ S
- delay(300);
" u3 K* K* Q0 q5 Q( Z( m - Serial.print(".");
' k' u; l3 n- V5 @, J4 K - tryNum--;
* k9 @7 w) K# H( H0 R- i' D - if (tryNum == 0) {) n" U, ~- W9 ?+ m+ J( g
- // 1min- N" m! Y; n- B! K
- // ESP.deepSleep(60e6);- T' H2 o5 D/ C, y0 Y
- ESP.deepSleep(0);9 R' k) j" a6 N! s) h& {
- }
; g8 S) v5 h$ q( }. J$ Z2 J - }
7 i: N$ T6 ~+ l0 C2 Y0 q' d* K$ { L - Serial.print("\r\n");. E2 t/ E! m5 m6 L, u; E: u
- digitalWrite(2,1);
. o) b! @: G! d$ j - Serial.print("IP address : ");# ]$ M4 d6 X! ?) B$ e
- Serial.println(WiFi.localIP());3 N6 V0 j8 ^! A' k
- server.on("/", HTTP_GET, [](){) f. L$ H3 v, T% A& H' Z0 {
- server.sendHeader("Connection", "close");1 U( j. p5 I3 d$ V1 G
- server.send(200, "text/html", serverIndex);& I# C. s0 g- `/ u9 K
- });+ j/ B0 X9 [% D$ ^- {& C
- server.on("/update", HTTP_POST, [](){/ H# V3 ], j# J" a& w2 m
- server.sendHeader("Connection", "close");# f, p7 d" k2 j7 n3 G, y# U
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
3 L1 f& }1 a# D - ESP.restart();
3 Q! y- u2 _0 Q- J( x6 N, L+ H8 x - },[](){
+ K5 ]$ O! P% s& @ - HTTPUpload& upload = server.upload();
, C, k5 L! }. n6 C3 W - if(upload.status == UPLOAD_FILE_START){
' k; R) r% w6 u1 f5 |7 W5 t - Serial.setDebugOutput(true);! ] E* e2 H# @, [0 I# I4 a) u
- Serial.printf("Update: %s\n", upload.filename.c_str());3 H6 t( `; Y( Z6 u# v3 c1 F9 f R3 Y
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;+ x! Y* z% u" F$ ^ ]: Y
- if(!Update.begin(maxSketchSpace)){0 [) e& K+ o/ X. z0 f3 B
- Update.printError(Serial);+ w1 \2 G# o4 d
- }8 ^7 h; `" L+ h3 P/ c& t2 |6 K
- } else if(upload.status == UPLOAD_FILE_WRITE){
; o6 Q6 ~ B. G5 _% X - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
0 V- @- i! H4 q' I3 Y - Update.printError(Serial);! i" F8 x1 _0 p: Y3 n! ]% ~) r! I
- }+ W4 Y5 q7 f- o! C w6 J h/ u) W, ]
- } else if(upload.status == UPLOAD_FILE_END){5 ^2 x* m# n- k- |& U7 h' T( P
- if(Update.end(true)){/ {8 E6 Z8 X2 l7 g6 q
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
2 f/ L0 n ^- I, o) Y2 i - } else {
) i$ z, t- `. A( x# D - Update.printError(Serial);' m; @ n4 W$ g; i
- }' I5 x d& n9 `! @ z7 E
- Serial.setDebugOutput(false);
$ [) H5 F! [" ^0 m - }: U& X' x5 W8 S; z
- yield();
; J { L# B8 G - });
9 l3 [* I" t8 u$ v -
2 \. ?1 W$ l3 \6 ? i# W$ P - digitalWrite(2,0);
- Q K2 B5 s6 H1 k, C+ o - mainAction();- j; S, s3 F5 t' l: `
- if (digitalRead(0)){( X1 w7 W( C0 {9 Q7 O5 t+ x
- ESP.deepSleep(0);! w: E. f; \7 V4 K7 n
- } else {$ u5 ]2 u0 r, h) G1 D# b8 v ~3 _
- server.begin();) e# z3 S& F g& w/ V* S7 s
- }
+ R5 I; m* G5 A - }
J* ]4 A: ]' i% r - void loop() {
: o: _! m% c' a. A) @ - server.handleClient();
, g/ [- J1 z% D2 ^& `+ @ - delay(1);0 m* s, a% O* N4 D0 Q2 U
- }
' R4 J3 ~$ p8 w9 H3 Q" e5 v3 A - String doGet(String url){8 O, R2 z" E K6 v. f' Z
- if ((WiFiMulti.run() == WL_CONNECTED)) {
: o' _3 F, F- L% w - HTTPClient http;9 E: A- ~4 G% F+ U2 m7 x, E/ X
- Serial.println("[HTTP] begin...");' |: u2 l* z1 ]: Z- n+ F' T9 U
- if (url.startsWith("https")) {
/ Z& ^$ i3 m2 @( s$ c - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
5 w9 P) i3 D, Q - } else {5 X6 d+ S' p- }, I( m0 f3 i" P
- http.begin(url);
0 }& T5 _" T8 w( Q Z - }6 L& g- W( s, @* c& Z
- Serial.println("[HTTP] GET...");8 s2 f/ a/ ?6 g; f0 t( B
- int httpCode = http.GET();3 P" H" b% t6 Z6 Q6 l2 }
- if (httpCode > 0) {) v& P/ C2 a9 ~& l, B
- Serial.printf("[HTTP] code: %d\n", httpCode);' m: d- f: d0 @5 o; }' q
- if (httpCode == HTTP_CODE_OK) {
J, A/ V6 r8 j& ]# y - String payload = http.getString();& M- H I* y* g
- Serial.println(payload);9 L9 ~, N) `9 n+ a# S
- Serial.print("\r\n");
5 f5 ` E8 I: t( H) F1 D! n' l - return payload;3 x; L o: t _
- }
; D8 j. y1 K0 p9 v- F* i, [0 T - } else {5 I& |3 A( T0 H; ~, u
- Serial.printf("[HTTP] GET... failed, error: %s\n",# U3 J% J# v# J& _- h
- http.errorToString(httpCode).c_str());! h0 B7 b; b. r; k. Q+ @. w
- }4 D0 I, ~" E. F) d- W, S
- http.end();
1 i# X. d& x j6 H+ c" I - return "";
) E& [( Q4 P9 h# t - }. ? f% \" L: k( L; A+ Z
- }
m7 x9 _9 h& V5 v5 D9 V$ h - void mainAction() {
$ A7 j1 g8 i2 L3 N/ x - // 发送请求
$ l! w3 t2 w1 y( |* ?/ ]# k+ { - doGet("http://google.cn");% }5 n; G% m. ~- {. r6 Y+ z9 \8 }
- }
2 K: G8 p' Y( ~4 C1 r0 v' I7 a
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