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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), t- j3 B8 f5 E; V
- #include <ESP8266HTTPClient.h>
2 o' Y* o) k; S m. q - #include <ESP8266WiFi.h>
# o6 ^' t* _3 N' y; T$ g' i - #include <ESP8266WiFiMulti.h>6 f# w* O+ g! {' }+ a" U# J
- #include <ESP8266WebServer.h>; j; E- p$ E9 C+ ]
- #include <arduino.h>1 \+ s B" i0 }- w/ }- w5 o
- ESP8266WiFiMulti WiFiMulti; k3 t% G/ R+ x- `
- ESP8266WebServer server(80);
& N( ^8 A. |8 E - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
0 C4 @. M6 ^6 u - ADC_MODE(ADC_VCC);
! c/ U2 @ n& b( u+ h - void setup() {. u/ x$ U5 q+ A/ E4 c$ |
- Serial.begin(115200);
! e& y) ?( `3 {8 F: g - Serial.print("\r\n\n");7 x- r, @2 [: J4 m& [
- pinMode(2,OUTPUT);
# H! a. y2 P, E& @9 {+ E - // WIFI- x. f7 y& `/ t) x4 Y
- WiFi.mode(WIFI_STA);- [4 t: Y: g( Q% V# k% N9 e
- WiFi.hostname("Sparkle");
, H$ j9 ~( o# N' c8 ~ - WiFiMulti.addAP("wifi ssid", "wifi password");
' B5 D% j+ j( u9 p+ L" f% S - int tryNum = 15;
4 E) F1 C4 W7 P5 e: u, o. S! Q1 E! X - Serial.print("Connect WiFi");4 M, ?! [% l# E2 z1 w6 @
- while (WiFiMulti.run() != WL_CONNECTED) {& `" z( @3 C4 Y9 Q6 s+ V! R0 A2 K
- digitalWrite(2,0);
4 X$ C( X' G! M+ ^ - delay(200);2 ~$ A: {' k- @, |/ l. {. L
- digitalWrite(2,1);
. x. o2 s$ Y3 ~' |- K1 c - delay(300);
e6 I/ R+ p1 N1 i) n g - Serial.print(".");+ V1 Z$ _# A4 h3 h" i
- tryNum--;
( M& X: H4 i* d$ z( c - if (tryNum == 0) {6 }# B* Z+ T8 S, ?( i
- // 1min1 _: @; \4 \$ i
- // ESP.deepSleep(60e6);0 a; S0 A( B, f E8 }) {
- ESP.deepSleep(0);! I+ j) u" @2 N' P/ ^
- }
* Z; L$ C, S* z& _ - }
3 X9 e/ {# Z+ v* U- a) n& j7 i0 e0 I - Serial.print("\r\n");& N6 U3 o% j9 v. V2 G( u
- digitalWrite(2,1);
v, T6 l2 q$ D9 [5 B# x5 h i - Serial.print("IP address : ");* o6 `+ O4 {, ^$ u/ E7 a
- Serial.println(WiFi.localIP());% z9 o, |2 s( m, i4 L' w3 {
- server.on("/", HTTP_GET, [](){
# z2 N7 \: y( K; G - server.sendHeader("Connection", "close");5 [1 @$ x W* `9 t* E2 M, D
- server.send(200, "text/html", serverIndex);- B" [. c$ V6 q# `+ n7 W
- });9 T3 \! s6 N) g# g3 ^& i
- server.on("/update", HTTP_POST, [](){
2 L- c6 v0 e6 c7 J* p4 H! G0 Y1 L - server.sendHeader("Connection", "close");
& R' s4 q o5 H, X! E9 | B; P% I - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
& J' O$ k7 ~. H& P - ESP.restart();
* Z$ W7 {2 d) d - },[](){, k: L1 `4 g _; H7 v7 x4 X
- HTTPUpload& upload = server.upload();- q- S% ]6 |, ~" l
- if(upload.status == UPLOAD_FILE_START){3 ?8 R }, ~' P f% B
- Serial.setDebugOutput(true);, ?, C/ x8 d6 n2 s$ F" e
- Serial.printf("Update: %s\n", upload.filename.c_str());! |* N+ M( U# }/ G
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
' |5 K. L, z# H* m# L+ C; q - if(!Update.begin(maxSketchSpace)){
! F- ]2 @2 I0 P4 X2 k$ G% U- S6 I5 A - Update.printError(Serial);
+ u6 D C8 n8 ~8 J' A# z7 j - }# h/ C0 D& d! o2 a: a
- } else if(upload.status == UPLOAD_FILE_WRITE){% M* l* i) p: ^+ f' s6 i
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
* n& n2 |) L' t7 K7 _ - Update.printError(Serial);
! h+ v0 A0 D. b3 P - }% q( {$ A7 {5 ^' h
- } else if(upload.status == UPLOAD_FILE_END){
8 ]- g4 A/ Q" m. }4 y9 ? - if(Update.end(true)){
- |1 J2 @. E* I4 [$ ^ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);1 ]2 r( c# `# G: g# F7 ?
- } else {
7 e3 W# g4 T0 |2 d- d- k4 ~ - Update.printError(Serial);
0 _0 t( X* b' z2 u% Z2 R! m( R& U - }3 c7 L' M+ B% p
- Serial.setDebugOutput(false);$ O! X4 y* E5 v$ B
- }
/ i* c, B* P$ ]( C/ U - yield();
: T+ U' G7 l% f2 L% F$ Z5 s/ H2 ^ - });
- V* ~ ]# ^/ [* H, E -
. F. w$ \7 ^! U2 N' R, R8 i - digitalWrite(2,0);2 [$ }1 P" ^0 ~
- mainAction();" @ C3 Z2 ]6 j7 \$ E
- if (digitalRead(0)){$ N% z7 x; b. B: X7 L" D
- ESP.deepSleep(0);
/ `1 h' g" W" P5 |9 z9 H2 P: r, ~7 \: H - } else {
" `7 f( U! }5 T: u4 Q/ U - server.begin();/ T+ B# C% a. y" H! k7 n: q
- }) Z; M- P$ _2 _' T: G# n9 p+ ?+ z
- }
2 ~! U6 W/ ~; x, s9 X3 ` - void loop() {
9 |- H+ d! D1 h: b - server.handleClient();
7 |. q1 r0 i8 |# W: D - delay(1);
1 q+ y6 J4 `' N8 i4 j' f - }
# A, J/ A5 B# n2 S - String doGet(String url){
- O, C8 n5 s0 G2 _ - if ((WiFiMulti.run() == WL_CONNECTED)) {
5 [. k" Y5 Z& w, X - HTTPClient http; G; s, Q, p/ z
- Serial.println("[HTTP] begin...");+ G/ M5 W0 Q+ q$ J* t }) l4 M
- if (url.startsWith("https")) {5 I6 W! T, z+ H: Z0 X* T8 K" ^
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
; B. Q) Q( ^0 i2 X" ?/ m: D2 r - } else {
4 R$ `. Z8 i, B9 Z* M, S" g - http.begin(url);4 A$ h1 k& E$ [: f& q0 z
- }
' X9 B( u* r0 S& Z - Serial.println("[HTTP] GET...");
7 ?0 I% Q; R( I& s, H1 ]0 K - int httpCode = http.GET();
( l9 X( s% ^9 p, a - if (httpCode > 0) {. N! ?8 J0 J) m& t9 x* f
- Serial.printf("[HTTP] code: %d\n", httpCode);2 s" C4 F5 r2 S: ?4 ]( J
- if (httpCode == HTTP_CODE_OK) {
$ ]7 W# ~" q* v0 X - String payload = http.getString();
6 y8 V% z6 u' P) z# \1 P - Serial.println(payload);
4 D% c' x4 W2 c1 a# A6 W - Serial.print("\r\n");" g; |' o* i: P% L& c
- return payload;
3 s; x# F/ x4 } - }5 n" A6 R' d! [4 x! A
- } else {' A5 N0 ^- F# e/ I; ?& ]
- Serial.printf("[HTTP] GET... failed, error: %s\n",! ~0 E- X% S5 W: |3 P2 N. {3 ^
- http.errorToString(httpCode).c_str());1 s* Z* o' T. ^2 D: O0 q( O
- }
0 l2 X) b/ j% [2 K, [) v - http.end();
* o4 Q" A I% a - return "";) z4 D0 ]/ D4 e; Y* t8 o7 z
- }
: |( G, T7 F4 M) p1 b w: S5 q - }
. D( n [9 \5 b - void mainAction() {
. ]2 I: V7 w$ w4 |* U( M; G3 L - // 发送请求. a2 }" \ h8 Z k( \3 n
- doGet("http://google.cn");
" x0 e) j7 m0 F( h) S7 b - }. G) b, T$ O$ P$ Z
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