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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)
! f$ c# I* K6 Q0 [% ]- #include <ESP8266HTTPClient.h>
- Y6 J- r5 v" G5 j Y+ r! B - #include <ESP8266WiFi.h>
+ H( g* c$ q* t4 P0 c* E" p - #include <ESP8266WiFiMulti.h>
! v& _% `: P9 U9 z. P - #include <ESP8266WebServer.h>
( {. m) V* |% I( G7 J - #include <arduino.h>6 \7 [3 N% p$ ~9 ]
- ESP8266WiFiMulti WiFiMulti;
, D M6 \, t- V7 u5 Q$ P% ] - ESP8266WebServer server(80);
! a$ M2 k* r/ ^ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
# N/ w! m2 L8 V. Y - ADC_MODE(ADC_VCC);
! J& U7 U2 `8 i$ w" A) M. } - void setup() {
7 L: T$ j9 R0 g G! c - Serial.begin(115200);
, H7 ~9 @1 W& l; ^ - Serial.print("\r\n\n");
% U3 H0 n& m5 z# E( u% i3 h/ e+ D8 I - pinMode(2,OUTPUT);8 K4 Y* Z& P: m+ v- `. S5 c
- // WIFI
) W' P, {# _) C) a. O1 E0 j - WiFi.mode(WIFI_STA);
0 M& K5 u% } d X; N1 g - WiFi.hostname("Sparkle");
1 D) [# W0 ], U) t C) P/ S( N - WiFiMulti.addAP("wifi ssid", "wifi password");; p5 A3 q( V3 b$ V' F2 E
- int tryNum = 15;
: z' K7 U2 o9 L% p6 n% _# c) I - Serial.print("Connect WiFi");
$ s) w1 I7 e* J5 J - while (WiFiMulti.run() != WL_CONNECTED) {& g+ F% H2 b2 C8 |) p/ ?. ]( t5 }7 V
- digitalWrite(2,0);
1 a: i* P- O/ z$ S! m9 J2 H( y - delay(200);
/ A. x% K5 S2 Y& h - digitalWrite(2,1);
% H1 y, G! ]8 p5 v+ p6 d* L5 i; d - delay(300);, d0 a7 V' d) j- n7 _
- Serial.print(".");
m/ {. y! x) D! b - tryNum--;# X3 P8 O: ?' O4 z
- if (tryNum == 0) {
' X) v+ _* s2 n- q - // 1min& V4 v6 J. t1 u1 z0 w
- // ESP.deepSleep(60e6);
& q0 _8 \7 Q0 z) P - ESP.deepSleep(0);
^' K; p8 i; I, n. H8 M - }6 a) n" L9 G$ k% ]! K
- }# O0 Q$ j2 e$ z& P4 w( L3 P
- Serial.print("\r\n");$ u5 W" i& k& P. w: o2 D2 g: W1 J
- digitalWrite(2,1);
! G& [+ \8 f1 s8 I! v0 p - Serial.print("IP address : ");( O1 K; N; W; d/ g" u5 w9 c
- Serial.println(WiFi.localIP());/ l; d1 [; ^+ k# m# u
- server.on("/", HTTP_GET, [](){
0 W6 ^8 ~# H+ K$ I! L - server.sendHeader("Connection", "close");
- R7 P, D- {# Z* Y A - server.send(200, "text/html", serverIndex);
: O q4 }; s! o8 k - });# l I; c& l% e- R0 N9 k: c
- server.on("/update", HTTP_POST, [](){$ b$ m& b8 h& z
- server.sendHeader("Connection", "close");$ @5 u4 v! x: J) y5 R
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");' J& |: B% n5 c0 g, o K$ a T7 t
- ESP.restart();
: X3 |8 Z* W8 q2 L1 F: w1 K - },[](){
8 r, x; O$ _ r& E+ O. c - HTTPUpload& upload = server.upload();' @5 ~& ?* L7 d/ ?: B
- if(upload.status == UPLOAD_FILE_START){
- M) i3 \! l' p- n3 C1 v9 Q# a - Serial.setDebugOutput(true);
. N9 a% |- n9 z- m' m- w8 q5 M - Serial.printf("Update: %s\n", upload.filename.c_str());1 R5 B" |( o/ Y6 d1 g% L
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;5 \' x( g/ I7 q+ A+ {0 P
- if(!Update.begin(maxSketchSpace)){
2 d. T$ b! D; t( { - Update.printError(Serial);" G: X/ e# C6 q" S0 _4 D' d
- }5 f2 ^! C' e% y
- } else if(upload.status == UPLOAD_FILE_WRITE){
, \/ O" h$ {- F7 Z7 [ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
( Y9 `2 U' J3 o - Update.printError(Serial);1 X3 R$ M+ N3 H" q
- }1 L/ x9 Z6 s. Z$ n
- } else if(upload.status == UPLOAD_FILE_END){9 r& G) d; E$ K7 D
- if(Update.end(true)){
# U7 W3 ?: C; c% Y - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
) i% W1 o0 L3 | f - } else {
}! f$ S, ?& S5 J& U0 w8 I! z3 f - Update.printError(Serial);$ z2 x, p& a3 }5 M, ]/ M) r
- }6 G7 j n5 ] d9 p
- Serial.setDebugOutput(false);
% q4 n' [! Z9 K% a; g4 ?& N/ i+ q - }
& F+ |6 d" U8 h5 o% |& c4 H+ \ - yield();
0 J/ d& o( ]% n5 w/ I( F - });! m# k; c3 R r- D3 X
-
9 i5 r& V- l# e7 ~' `4 d- m - digitalWrite(2,0);" p1 l r1 F# L$ o d4 Q
- mainAction();9 c! o) S! ^" H* l) E: I1 Y ^
- if (digitalRead(0)){( e# v3 ?+ A, M0 H
- ESP.deepSleep(0);
. [5 a/ f. J( t) F; |6 r - } else {
' y8 R; l8 A( @ m/ }. H7 f - server.begin();
6 _" r+ c! L% m& P4 b# X) w - }
6 W: k6 |; V+ U% p - }4 [9 x+ M5 h7 V0 [
- void loop() {
4 m' h& P0 G/ T! m1 I9 Y - server.handleClient();
7 L7 ?* \% q* u/ X - delay(1);
; |7 ~* J6 u/ v% q4 x3 R3 X! g4 D7 q - }, W( Z& f5 |0 f! O
- String doGet(String url){
E4 y: I/ M/ r; P: O) e1 o - if ((WiFiMulti.run() == WL_CONNECTED)) {3 p9 q" [- h* ~$ w# ]. q8 h
- HTTPClient http;3 m5 K3 l- Y5 c0 J- m p7 L V& G
- Serial.println("[HTTP] begin...");; U5 p" P6 L* m/ a* T5 `& v5 |
- if (url.startsWith("https")) {- b, O" f: b" p' ?$ z8 T" }8 F7 ~
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");5 w6 Y) T5 F7 [& L4 Y5 U
- } else {
Y) y0 J9 S1 U8 G+ V! m - http.begin(url);
1 w! \& \1 G' u5 u5 S - }
9 X6 w7 c, T3 d- [ - Serial.println("[HTTP] GET...");
2 a2 u- {+ |0 ?/ C, V; f - int httpCode = http.GET();! G$ M6 W4 o/ g! `$ q7 Z2 q
- if (httpCode > 0) {0 q* h2 {* Z* U3 m9 v
- Serial.printf("[HTTP] code: %d\n", httpCode);
; Y) ~ W9 f0 _& V4 h9 \' p! P: L - if (httpCode == HTTP_CODE_OK) {
- `2 ^, K1 o3 [$ g# S: i - String payload = http.getString();
6 ?+ q$ q; W7 c- D0 R* m - Serial.println(payload);/ e" M8 w: N' j; ]5 U7 ^, g& {
- Serial.print("\r\n");# H/ n& W. s" f4 q g; H7 F
- return payload;
9 o/ C: k$ c4 G# y) K/ ~4 { - }
- m9 X9 g" C/ o' V7 @ - } else {
2 B) E6 l+ C$ ]$ K! z - Serial.printf("[HTTP] GET... failed, error: %s\n",
: o1 q V5 E1 |3 Z) M$ q' k( D - http.errorToString(httpCode).c_str());
! q; X4 M. E/ G0 c4 Q3 ?6 ~8 S - }& N: N4 B s3 m7 V7 I0 H# D P+ I( e
- http.end();
$ i9 q7 z E% _3 w% U/ d - return "";
! m" e% d: I% [9 ?* i - }
+ ~8 [9 s$ ^; b+ N, H - }9 }& v) @$ \: j# s3 Z6 r
- void mainAction() {3 @3 V: `. ?$ ^9 M) Y
- // 发送请求8 ?! m- C7 y1 n$ T/ H
- doGet("http://google.cn");
. P+ F. r/ o7 c& ~+ |) E! r - }
6 A) v2 y- @) C0 f% X
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