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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 ~+ R1 e7 b9 G# P- d, A! h- w0 E2 e- #include <ESP8266HTTPClient.h># n6 x: B) E6 c" Z' X
- #include <ESP8266WiFi.h>
4 F! u6 A" A: ^ - #include <ESP8266WiFiMulti.h>
5 n' @0 i; a+ g; k2 G* _3 P) }) j - #include <ESP8266WebServer.h>3 s9 W6 X7 h4 s2 C# H u9 Q
- #include <arduino.h>
/ [' O3 _: s' V; I- {5 P) @# y7 E - ESP8266WiFiMulti WiFiMulti;4 Z- @7 Z9 \+ B
- ESP8266WebServer server(80);
" O; v1 Z& w* l9 W - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, y: s; {; j- {0 [1 S2 } - ADC_MODE(ADC_VCC);
9 N7 I; h9 T) S/ ]- |: E- W - void setup() {' [/ C! e; [1 K+ |
- Serial.begin(115200);
/ Q8 k. e" Z5 {6 t1 I* B$ ] - Serial.print("\r\n\n");
& J0 @7 B1 l; J- C8 a. E. B - pinMode(2,OUTPUT);
2 h( N: n+ @6 j& W2 T, D0 H - // WIFI
! l1 d8 T( L7 q. B. p% S* u - WiFi.mode(WIFI_STA);" d% W, A! R! |
- WiFi.hostname("Sparkle");
& d# e! P) _2 u: w/ x7 l0 ]( o - WiFiMulti.addAP("wifi ssid", "wifi password");
. A8 w+ Q' W7 q; F - int tryNum = 15;
/ T$ E! q" c! B4 p - Serial.print("Connect WiFi");; Y; L6 V' ^1 R" r! g$ p' R
- while (WiFiMulti.run() != WL_CONNECTED) {
9 @* l5 F4 F5 s: t2 P% _& Y7 a) M - digitalWrite(2,0);# z; T/ h6 O$ R* i; l; x
- delay(200);
- g+ j F! r& X2 Y: S - digitalWrite(2,1);
& Z5 D; L" f/ j - delay(300);( X ]7 l' w: O7 w1 P
- Serial.print(".");, ~1 T$ e8 K# ?( \/ z" f9 s; v% U
- tryNum--;# U! G0 q- \' S# G7 m q& a
- if (tryNum == 0) {
4 O1 E2 a* }3 c) v( y - // 1min
9 R* b) \* f) T4 K2 f, S - // ESP.deepSleep(60e6);
9 N6 }1 G G. ?3 T6 D3 x. ^9 ~, l7 ] - ESP.deepSleep(0);$ E0 Y! Z5 @0 ^4 ^* l
- } o$ ~3 t- K& o4 l6 i
- }. m# `5 T- D% r+ T3 n+ s w$ H
- Serial.print("\r\n");
- H! V0 U# S# t1 s - digitalWrite(2,1);
$ X& L( X# c' }0 i5 K, l: D - Serial.print("IP address : ");
: f g/ Y6 t! v+ n1 k - Serial.println(WiFi.localIP());
! B' G$ a6 h0 ]2 i1 }7 g- X/ S# W - server.on("/", HTTP_GET, [](){
# H# c1 V' B$ N }: z2 v - server.sendHeader("Connection", "close");/ E9 ?2 v, l K
- server.send(200, "text/html", serverIndex);; n5 ]& n% w. U, u
- });! X, `) U* w3 ]! o1 \/ |( X
- server.on("/update", HTTP_POST, [](){
( r7 f0 f) x$ }; _% F - server.sendHeader("Connection", "close");
% Y2 d5 t+ _4 A' `0 S6 ~8 I+ A7 S6 l: q5 t - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
7 b$ m+ Z8 l; N* I. D. M - ESP.restart();
* t3 o" d4 U. f* b: h/ {- m - },[](){
& f$ ~! X/ k7 }: W. }2 P' t - HTTPUpload& upload = server.upload();6 U; t. r9 `& K
- if(upload.status == UPLOAD_FILE_START){
; B7 m: u- M0 k! }- ~( s/ {- i - Serial.setDebugOutput(true);. s6 _0 w$ y' Q! ]5 P4 g# K8 W( }8 v
- Serial.printf("Update: %s\n", upload.filename.c_str());
% ?0 O" Y7 t ^* v0 N - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
4 O- B1 _. B5 N% y5 [, p - if(!Update.begin(maxSketchSpace)){, g. u) D* u) T5 H
- Update.printError(Serial);7 E. i3 t2 t; l; ^. O# `! L
- }
; I' R$ Q3 |- \6 y' b - } else if(upload.status == UPLOAD_FILE_WRITE){
! f' \% q) b4 q6 ?8 I - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){; s7 J l: H: Q4 _
- Update.printError(Serial);
3 r7 T0 H: p5 h8 E0 }8 M - }
7 y. L4 c) o5 n9 v V% v7 ~ - } else if(upload.status == UPLOAD_FILE_END){3 ]8 Z F. {0 H3 E9 l9 }6 N3 ]
- if(Update.end(true)){1 `$ T8 U$ D1 Q/ U. r* I) _
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
5 f; |( j. e0 i* x- B4 y" O - } else {
# g$ X8 A" y8 l% m U1 J# H - Update.printError(Serial);
0 R. R, Z& I5 s' d9 @6 t+ R ]' p - }7 R% o3 C K% @! j; V
- Serial.setDebugOutput(false);( E: U; t- F: X. Y! W3 L# y/ I
- }' t. y5 p, T" j: b8 W, [8 y
- yield();# I9 f i# M8 L7 F0 ?$ p8 ]
- });" C" H7 w( F/ l) A; c
- 4 c3 W4 P. ~- J! h9 o4 Z) B
- digitalWrite(2,0);' [6 U" m9 n, d
- mainAction();7 b- }5 r# n7 f" `. P
- if (digitalRead(0)){
: e! ?) x; D2 `3 G - ESP.deepSleep(0);
3 G9 ^) U( |9 F2 l2 @7 j d7 K - } else {# V+ y j2 [ R y8 M
- server.begin();
0 ^9 {3 a+ v( Y# W0 o: Z0 A# X - }
" E/ s& w- q5 V - }, c4 x/ b! g1 Z( h9 h
- void loop() {
* _- Q' P+ _0 D+ n# e6 w% Q) w( C - server.handleClient();3 T" v G" g' ]4 M
- delay(1);; z5 c, g2 f+ p% Q9 q
- }
& m6 T8 N( E1 G U - String doGet(String url){
, j! ?; m. d% p( C) L' S3 Z - if ((WiFiMulti.run() == WL_CONNECTED)) {6 s- q. H6 k2 | N3 V$ U
- HTTPClient http;. P* A( y/ X" {
- Serial.println("[HTTP] begin...");6 w; o5 j: K/ t$ A
- if (url.startsWith("https")) {
1 @: k4 ~5 G* Z! U - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");, }9 J! l# l9 Y
- } else {
% `8 W" f. X- y0 t R# Y" y" { - http.begin(url);
: z9 }/ g3 ]* x& y) o2 d% \2 b - }0 e F+ w) r3 D; h& n" B$ k
- Serial.println("[HTTP] GET...");. @: Y" t" X4 J1 v
- int httpCode = http.GET();3 O. B4 b. k8 P1 }) n% C( e# h
- if (httpCode > 0) {1 ?4 Q; }' ~6 P, E
- Serial.printf("[HTTP] code: %d\n", httpCode);" [2 t0 x4 j7 @' Y2 Z$ g
- if (httpCode == HTTP_CODE_OK) {
# M9 p$ s2 D8 R2 ~6 t" b - String payload = http.getString();
5 c5 t. `. {; s% ]6 ] - Serial.println(payload);
9 u4 ^4 l+ W* R. R - Serial.print("\r\n");
# g) h0 O* U; h3 \2 r - return payload;. j! }; o7 P; S" B7 b) c% P
- }, a8 L& N! h' B% `3 I
- } else {
) ?* z( k; W/ R. ^ J: q" J! o& | - Serial.printf("[HTTP] GET... failed, error: %s\n",. }7 J4 L5 H/ x; S
- http.errorToString(httpCode).c_str());
: s0 }- Y! N+ }3 l0 h0 L2 J$ q; G$ Z - }
5 ]) a. l( A; R( S0 ?5 C - http.end();
! T1 L) a+ o, g `9 H - return "";6 E2 ^7 E& @+ ?- t( }' K3 w/ a
- }
! d$ [/ \1 {0 p1 A0 B# I - }0 T" ?. o( F; m& P
- void mainAction() {) h4 H# F( e/ b W7 t y6 }) r
- // 发送请求% m8 \- `/ y* g9 }& ^
- doGet("http://google.cn");
6 p. i; K f/ [9 m. h - }4 L3 K8 r) M6 q" t
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