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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)- H( Y; p8 L/ t* o9 r) I
- #include <ESP8266HTTPClient.h>
/ I; v, O7 |3 w! D! ` A - #include <ESP8266WiFi.h>: j- D8 e, G% J, Q
- #include <ESP8266WiFiMulti.h>: }8 h, |. M- _) m- K1 B \. h
- #include <ESP8266WebServer.h>% p- m! g/ e5 v+ a
- #include <arduino.h>- J& I( q& q. [
- ESP8266WiFiMulti WiFiMulti;4 ?+ m1 X1 Y3 @8 S
- ESP8266WebServer server(80);: g( O7 D. V# }) A: A
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";1 y P" Y+ o" M* `( d* y0 [1 b
- ADC_MODE(ADC_VCC);
. s5 w, x! \; i" p - void setup() {
# J& v8 G" g, v9 k7 B - Serial.begin(115200);1 ^- l2 ~" P# ?! P# F$ N$ q) p0 p5 Q
- Serial.print("\r\n\n");- e1 C1 J" S- P8 F- \ I( w# }
- pinMode(2,OUTPUT);
+ H& k$ C2 v' P, z - // WIFI2 W3 ?7 K, z+ [. R" Q# h7 d
- WiFi.mode(WIFI_STA);
- w1 X2 N, I u - WiFi.hostname("Sparkle");
4 J* S. m n+ E. I8 H8 b s9 E, v - WiFiMulti.addAP("wifi ssid", "wifi password");( o# e" a, E6 g2 s+ ]; }) b
- int tryNum = 15;
, F% G b: i2 q! n/ \ \) b - Serial.print("Connect WiFi");
+ J/ T- g. s1 \; ?2 n - while (WiFiMulti.run() != WL_CONNECTED) {
k P/ x1 _; Q% s% n - digitalWrite(2,0);
1 x* b3 E ^ ^3 }. ~ - delay(200);
3 I6 L8 S1 e, |0 h! Q - digitalWrite(2,1);
( y9 Y' t6 ^6 `1 N - delay(300); w- c* [* E5 \. t# R3 C7 |7 w! a0 [
- Serial.print(".");
9 `/ x1 H; Q1 P/ `) b/ r4 C - tryNum--;9 U: x" N; C, ^. S) P. A
- if (tryNum == 0) {3 W" C7 h M& n7 g0 ^& b
- // 1min& q9 L) k4 [9 w! b
- // ESP.deepSleep(60e6);
9 `) v; ]& T0 [# ?' _/ e& n - ESP.deepSleep(0);1 O0 H7 n' N! x6 e! x
- }1 l; H$ D9 l/ s
- }# {, `! Z v2 _* x
- Serial.print("\r\n");
y: A! v4 @" u% }/ r - digitalWrite(2,1);
9 d2 y$ Y- b# ^" k% K2 r - Serial.print("IP address : ");+ x1 w, G3 ~" N0 k/ u
- Serial.println(WiFi.localIP());1 U, y+ ~) L+ R' k3 j
- server.on("/", HTTP_GET, [](){
% e$ t! d* }; D - server.sendHeader("Connection", "close");! @& h) I4 _8 t- r3 \) K
- server.send(200, "text/html", serverIndex);
' g5 b$ W: b/ P/ T* s' V - });; Q9 b9 W0 Z B! F5 X
- server.on("/update", HTTP_POST, [](){- X/ K% a- ?) z5 ]7 ?
- server.sendHeader("Connection", "close");
0 [& K# O( W) T- _8 y - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");9 z$ y( G) Y# c. w6 B/ F8 @
- ESP.restart();
8 Y- b1 A6 Q) W4 W/ f! U, s - },[](){
) T% e2 y$ I; H, T& M1 h - HTTPUpload& upload = server.upload();; @9 w. X0 |$ Q' c
- if(upload.status == UPLOAD_FILE_START){# J1 _0 H. m# |3 G, z5 ~
- Serial.setDebugOutput(true);% b" Q. p; [7 Y2 ^& F+ ~! O
- Serial.printf("Update: %s\n", upload.filename.c_str());- ^ q7 ?+ O) a" q; s9 }
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
4 B1 O9 Y# w/ S6 y - if(!Update.begin(maxSketchSpace)){
' e+ |$ y! D7 d - Update.printError(Serial);# L( J3 V; z7 A/ p
- }* |8 F$ D: \0 f! E: c9 V
- } else if(upload.status == UPLOAD_FILE_WRITE){+ j( I0 \# d$ {2 M' I; f" X
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){- x5 y" D4 w0 O) L3 f
- Update.printError(Serial);( D2 P* n. T3 {% }- p3 w H) L
- }
8 }+ D! J; L) u; B' Z! j - } else if(upload.status == UPLOAD_FILE_END){2 Y$ m, i, W& j6 d
- if(Update.end(true)){
. T; K- }$ q0 T% r - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);$ y h* b. V7 _
- } else {2 U. d7 Y: T! M7 b. I
- Update.printError(Serial); [. |- \! O) Z G) Q- c$ b8 C8 Q
- }0 E' v: c9 g" g) l" P: r2 ]8 C8 ]
- Serial.setDebugOutput(false);- N9 L" p# F' B, K! r
- }
L6 Q% k. b# o# X( ~& @ - yield();4 _: r4 s6 g+ `$ W2 G6 M9 a1 z1 T
- });( {5 }5 u% m! X( d6 H
- + L. \' l9 X# n! n0 K
- digitalWrite(2,0);* f2 b# l. M" q4 f7 g4 f: } D5 T5 {
- mainAction();5 u5 U" J8 u" d1 w+ x
- if (digitalRead(0)){
2 g3 q9 I2 D) |5 h - ESP.deepSleep(0);% V# e8 w( D# @4 f) E h& S9 d
- } else {
5 T" `8 D' z9 ` - server.begin();, O1 k2 F& X7 A5 }. s" ]% c
- }
/ ~7 d0 I, h* u4 L* w - }6 f4 ~" L3 f: p* ]! W; I
- void loop() {6 g6 E. J3 y/ |5 D( t, a
- server.handleClient();
! R9 }$ }+ ]) P* j! C) ~: d - delay(1);; u/ }0 ?' ]/ |# ~; A( ?2 s/ K' b
- }9 `- D" Z: n+ b Q$ ~: a
- String doGet(String url){
5 X; w0 x$ @7 p6 `: @ - if ((WiFiMulti.run() == WL_CONNECTED)) {
5 E3 K7 ^) d" R" E - HTTPClient http;- [, U7 e# {. X
- Serial.println("[HTTP] begin...");: j) F; p( z/ G, D- d/ x
- if (url.startsWith("https")) {
. ?5 |- b$ h$ F0 p/ P# z+ } - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
& d4 A7 A* r9 T% T: }' r6 r - } else {, x& T& ?7 c, G ?
- http.begin(url);8 @ t! a0 K4 f$ }1 ?# q
- }
" G. `* R+ U) w - Serial.println("[HTTP] GET...");7 H/ L! y( ?& K5 z9 L
- int httpCode = http.GET();* i9 Z, S0 E8 R. o9 Y% \1 {' S" I
- if (httpCode > 0) {1 N% e7 { G- x+ x" r
- Serial.printf("[HTTP] code: %d\n", httpCode);
' C( t: Z- B* q j# g; b - if (httpCode == HTTP_CODE_OK) {; N3 _: @' j, j) s
- String payload = http.getString(); m* C+ l" Q. u8 s
- Serial.println(payload);
2 ?/ D! H' x0 `' Q7 L - Serial.print("\r\n");
& y% P, B- S; ^, v - return payload;
! J" A4 l, y o# h% g. k - }
) C4 e% i& ]5 f+ D2 k' g) y) T - } else {
* v v4 f. r( g# Z t. ] - Serial.printf("[HTTP] GET... failed, error: %s\n",
k, T0 [% ]! p1 Z! p4 ~6 \- s& [4 s - http.errorToString(httpCode).c_str());: e+ W9 b. D; `
- }( J ~ B! y2 U' L
- http.end();
, H# m! R2 G. o* P. E( `4 b. r1 \ - return "";
* R" H& Y$ z( \7 w: m/ ~. |1 ^ - }
' G* O8 _: J% v% K0 W. q' w! [" P - }# ^$ K/ `) F( h9 W) f% Z; P' P
- void mainAction() {
8 e. i3 @9 J2 x8 \: |7 W# K - // 发送请求2 o0 L8 \9 X# v
- doGet("http://google.cn");
! _; [8 V" ?, H( z5 d - }$ I4 R/ l+ p9 |/ y$ `3 n
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