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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)
9 Z* |" ? J6 w# M! r- #include <ESP8266HTTPClient.h>
. l# X7 [2 i* |, S) J, b - #include <ESP8266WiFi.h>" |- F9 g$ C/ R9 l
- #include <ESP8266WiFiMulti.h>
, H0 D4 }4 i( ]) f. ` - #include <ESP8266WebServer.h>
7 s2 z3 l8 {3 T! b - #include <arduino.h>
+ q9 {6 o- o) Y# s4 Q1 } - ESP8266WiFiMulti WiFiMulti;
b. M3 z4 O$ G - ESP8266WebServer server(80);' @9 q% J) Q$ E* w
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
/ O9 E3 C% E3 y4 x0 m - ADC_MODE(ADC_VCC);3 q6 o' i7 n" c5 _6 v
- void setup() {# C) s1 U$ j/ U# y# J4 |
- Serial.begin(115200);; z- I7 v' i6 l
- Serial.print("\r\n\n");
1 R @! I+ f# j$ w - pinMode(2,OUTPUT);
! n! y2 g, Y G2 {( n* @ - // WIFI, O; B) ?) G @9 X9 q; I
- WiFi.mode(WIFI_STA);8 P8 ~+ g9 g. L9 g* A. v
- WiFi.hostname("Sparkle");
" F6 v6 X! T0 E* u - WiFiMulti.addAP("wifi ssid", "wifi password");$ V* Y5 m0 o3 K
- int tryNum = 15;) C9 A1 a2 } [1 P, v8 l
- Serial.print("Connect WiFi");
/ {5 g; Y! H4 P* r3 o& c0 ]6 o; M" Q - while (WiFiMulti.run() != WL_CONNECTED) {, J2 y F- j& g3 t; z
- digitalWrite(2,0);
; j$ v5 O( S1 n! |3 `$ l0 ?8 L - delay(200);$ o0 n& m2 P: A4 S; i7 y# {
- digitalWrite(2,1);
' [$ m$ b0 n0 |! s - delay(300);
* [1 _; W9 H8 Q" U% p. c - Serial.print(".");
* X/ a1 r K1 ~, B N - tryNum--;
* [+ h/ U1 c' K4 S m9 Z, n - if (tryNum == 0) {5 e0 l5 E% \3 V7 E& H
- // 1min; K) C# K6 @3 L
- // ESP.deepSleep(60e6);
9 I' Q' q3 x( q. A( y0 ~5 x - ESP.deepSleep(0);& e/ Z0 P8 M7 l: G: T6 D$ }5 I
- }+ X) Z8 L) e( j5 r) Z8 F4 `2 N6 D/ `( A
- }: D( |9 Z' ~% h3 h
- Serial.print("\r\n");
" T2 x2 S4 ~# w/ K2 M1 e" d/ `9 S% { - digitalWrite(2,1);5 z+ y8 i! U/ c7 l
- Serial.print("IP address : ");% u+ ^4 E0 e5 m9 I3 _: i
- Serial.println(WiFi.localIP());6 e1 F! _& u) y. Q; }: Y
- server.on("/", HTTP_GET, [](){
$ _! `) D6 m% A+ O3 y Y! M0 N - server.sendHeader("Connection", "close");; ?5 u- d) ~& }5 H, z8 o9 [+ F
- server.send(200, "text/html", serverIndex);
" {6 U% ~, [1 y2 e( |) U# T - });( P2 g g: w% [; D0 f4 [
- server.on("/update", HTTP_POST, [](){, X7 j0 _) z5 A3 i* ?
- server.sendHeader("Connection", "close");! @: q& x9 S- i' `4 R" V# [
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");3 M* e" E# v* J4 ~' W3 T
- ESP.restart();' t! [ K4 H- e. Y- p" `
- },[](){
' D Q. _! w( N3 A! Y - HTTPUpload& upload = server.upload();
" q( \7 T5 u6 M" k3 G - if(upload.status == UPLOAD_FILE_START){
8 ]; ]1 J' \4 n- D A - Serial.setDebugOutput(true);3 ^8 ?# f, u; Q4 @% I& b* `# r' F
- Serial.printf("Update: %s\n", upload.filename.c_str());
& M) E. Z8 ]9 N* q1 j# @ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
8 t4 B& E+ o: }7 {8 u' ?9 R% X - if(!Update.begin(maxSketchSpace)){
8 a$ H1 X8 Z9 H# S. _* s! d, \# W - Update.printError(Serial);
2 D: R i# ]8 s. ? - }5 } c5 J* {* w* d
- } else if(upload.status == UPLOAD_FILE_WRITE){
0 v; e& G+ e9 g6 W( d+ @ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
: g* ?. h8 L) M( H$ {, x; v - Update.printError(Serial);
) {8 t S: b( Q - }
+ S' i) h3 |9 X$ S" M - } else if(upload.status == UPLOAD_FILE_END){ e: L0 h5 e5 f3 i+ f% N
- if(Update.end(true)){
6 M9 Z. p$ B4 l' U - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);3 y0 v7 U9 U& f) T: d
- } else {& k5 X) E! J2 T7 y# h9 ?+ z# {: C
- Update.printError(Serial);5 X M1 W0 K% s4 U4 |" {6 ^
- }
2 Y/ r- B( P$ _7 i" W5 |) L$ I: e - Serial.setDebugOutput(false);
/ g" x" L$ G( }# {) o& U: O - }* N6 ^4 r9 D8 ^3 ?$ ]
- yield();! t: o/ E1 Z( A' H6 W& X- l
- });/ y) @3 {9 {8 T" e6 b4 T! N
-
6 o& [4 g7 w8 y v' a( O! W% w - digitalWrite(2,0);+ k2 i; d8 v. Q4 {
- mainAction();
, E7 V9 M" x/ A$ T) X. ~; V# m3 D - if (digitalRead(0)){
8 p7 w2 M z/ B% b6 C - ESP.deepSleep(0);
! N' Z/ q% |2 m' q! R5 w+ { - } else {
' ^. c9 F0 n- p8 P' s0 O - server.begin();
' _) w: u3 `8 g: n5 |& b+ N, U - }+ \! [6 l" c' I; q8 s
- }+ F/ p* B# ?* O. P5 _
- void loop() {
: v. ~4 h! k: r, q2 e. V2 y* s - server.handleClient();. Z7 L; q) G$ B
- delay(1);2 ?; p2 U5 z& N+ @$ V' O1 ?
- }. C3 u. u& F; e3 L2 z
- String doGet(String url){3 k1 m5 t7 O1 A' T4 u- j
- if ((WiFiMulti.run() == WL_CONNECTED)) {
2 J8 r) x0 O B. t% V+ ?" S3 r: K - HTTPClient http;) ~: ]6 A, X0 s
- Serial.println("[HTTP] begin..."); P; J0 p' a3 q$ X c9 I
- if (url.startsWith("https")) {
: ?5 X4 t4 {6 i* | - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");' U" ^5 K2 I, c+ u" m
- } else {
- L& {( f, J! ?& N& n2 e* T% K - http.begin(url);
# N+ k( y: p, A/ ~ - }
1 v3 P) w4 k3 N/ o9 @- _ - Serial.println("[HTTP] GET...");
6 p7 \ y' \# ` ?' O I - int httpCode = http.GET();
* h3 F0 H/ z7 Q6 a" G" u0 y - if (httpCode > 0) {7 n, o2 V: E {
- Serial.printf("[HTTP] code: %d\n", httpCode);0 @: H) g- Y3 b5 b* c) W; P
- if (httpCode == HTTP_CODE_OK) {% u/ i. X1 j1 ]& ~( Z, @
- String payload = http.getString();
" M4 U: c2 d. j f5 V% b5 Z - Serial.println(payload); ~7 l8 V3 {/ u5 s
- Serial.print("\r\n");
1 I( K( r3 ~% a% u- x$ Q4 B - return payload;
, E1 h& {" x8 r o* o - }4 z! b3 b3 x& a1 {) A: b
- } else {. V6 v0 h A9 m- q9 n& R2 c
- Serial.printf("[HTTP] GET... failed, error: %s\n",2 s9 x3 v. g) T/ u4 w
- http.errorToString(httpCode).c_str());' b) C* y- G/ w( {' X( a2 ]
- }* _8 s1 B* r7 x; u) U4 F
- http.end();! n7 h' r3 G: x9 u
- return "";
9 z2 n5 i; s8 e- w - }9 t6 \8 B4 g" e+ I# |
- }
. I) g {$ _. P) R3 v - void mainAction() {, ^ ^$ t; a' w' C
- // 发送请求! |$ K- Z& o) R2 m
- doGet("http://google.cn");
9 ^5 U# l+ h5 p - }$ m4 B: U9 z; G+ {+ S
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