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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)/ O7 b7 X9 T) h$ x! M
- #include <ESP8266HTTPClient.h>
9 s$ C. l/ q) r- o" k - #include <ESP8266WiFi.h>4 b/ J7 O3 _9 t; F- S
- #include <ESP8266WiFiMulti.h>0 }' u, s* a/ [* Q
- #include <ESP8266WebServer.h>
3 h7 Z, {. W) K. D0 O - #include <arduino.h>5 o2 i+ s) `3 A) M0 E; d
- ESP8266WiFiMulti WiFiMulti;
* d- I* K: P# J$ y4 ` - ESP8266WebServer server(80);% _$ P6 e, g7 e% Y! @$ o" D5 t8 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 W4 N$ q/ J x
- ADC_MODE(ADC_VCC);* c/ X4 j- f& ~7 D: k; u& D
- void setup() {1 E Q# h. _$ W2 ?1 F9 C
- Serial.begin(115200);0 k! u1 t' d/ k
- Serial.print("\r\n\n");) Z) t! V! |& M4 }5 `: T7 j+ z
- pinMode(2,OUTPUT);
( W$ @9 h5 f$ k0 r& _- x7 b - // WIFI# u/ @9 R% J3 z! `' X
- WiFi.mode(WIFI_STA);
6 l6 w$ n6 _3 I3 a% W2 j - WiFi.hostname("Sparkle");1 m+ l# P0 Y1 s, l2 r [
- WiFiMulti.addAP("wifi ssid", "wifi password");
0 q& y6 x; P9 j - int tryNum = 15;
: ~6 |% k- D0 N! M5 Z - Serial.print("Connect WiFi");" O3 @; b9 [" l# `8 l R5 n
- while (WiFiMulti.run() != WL_CONNECTED) {; H& f' d9 p8 u- N
- digitalWrite(2,0);: f1 _ U% u% q! S1 V, f
- delay(200);
$ \& {5 q; C$ L6 t7 B- m - digitalWrite(2,1);8 _6 Z) K5 e+ R! |: D) K" V
- delay(300);
~" T: N1 D) {+ | - Serial.print(".");
$ E3 K/ y9 x; z4 E4 | - tryNum--;0 o, B' w* o! t) N9 M$ o1 U
- if (tryNum == 0) {, n/ J- {. m% @! ~5 w+ R' J" z$ V# X
- // 1min
2 z( n3 S. R; V' K* ^5 b5 e' F - // ESP.deepSleep(60e6);
* o; O# B- ~) M - ESP.deepSleep(0);
) {$ |4 C0 J0 o1 u - } p2 l2 u( ]; |2 L4 x5 I# z
- }* Y x7 F+ Y6 |7 |6 a8 L. A
- Serial.print("\r\n"); ?" i$ W! |( v {8 B
- digitalWrite(2,1);
/ q Y S4 k \ - Serial.print("IP address : ");/ a8 d2 P6 h* V- w
- Serial.println(WiFi.localIP());
) H/ S2 l4 m# g4 N& h/ E ~ - server.on("/", HTTP_GET, [](){0 M9 E; j# P/ _8 i" \
- server.sendHeader("Connection", "close");
$ Q. | L& X/ `3 ? - server.send(200, "text/html", serverIndex);/ }- A. R: q J& S$ p7 Z
- });
4 s! I' |+ t' e- Z" t% e w - server.on("/update", HTTP_POST, [](){' J) X/ {" u' D+ m) ^7 t7 D2 Z( t
- server.sendHeader("Connection", "close");
0 E* _7 x4 l4 [6 x8 O1 E3 l - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
2 ] @) u; D; c - ESP.restart();
2 V( W5 Q' T; `6 a2 b; `9 i+ } - },[](){ e5 V4 b1 p- j
- HTTPUpload& upload = server.upload();
( D: n/ `8 M- X. L5 s+ V7 C - if(upload.status == UPLOAD_FILE_START){
( e& E$ x% {% [# ? a7 ], A$ B - Serial.setDebugOutput(true);0 A% o5 J, y' s% g4 |
- Serial.printf("Update: %s\n", upload.filename.c_str());
. f, I& p Q6 J2 V* Q - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;+ ~% r/ b- x. s
- if(!Update.begin(maxSketchSpace)){
7 K2 t7 e1 ~1 b) x0 r/ h/ u( V+ W - Update.printError(Serial);: v7 T7 p4 c# t/ V5 ?- `& a
- }* F6 {: F& s2 \5 _: e
- } else if(upload.status == UPLOAD_FILE_WRITE){
: X. ]7 Q. l1 r - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){# ?! a; c6 ]2 \6 c2 c0 k
- Update.printError(Serial);. q1 V; {" F" ]$ `
- }6 }. d6 H$ ~" G0 l4 ?
- } else if(upload.status == UPLOAD_FILE_END){
( f8 L8 _7 y5 R+ i! b- C - if(Update.end(true)){
2 j7 ?9 S7 ^" j: P7 s: w3 X - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
4 \ v# O9 o& @1 U# ?# f& `" H - } else {
" ~! W4 k, B) w4 R& u% Z - Update.printError(Serial);& [. b% v% j1 y: v4 f
- }3 [, m+ A1 K# f0 O6 Z+ v3 S' w
- Serial.setDebugOutput(false);' c" Q% G! p8 @# J& l
- }
& E- \: H- }" v' Q3 L. c ^! _ - yield();: ~2 Z$ O$ J Y5 J% p
- });
$ X% w8 |; o) w4 C0 D9 {, |. s- Z -
2 {# q- L* O* Q) M- B, b6 S4 B" S$ s b - digitalWrite(2,0);2 v- ?; M4 V$ }/ r+ h& V
- mainAction();+ x% |0 P! Z U) D3 h' u
- if (digitalRead(0)){3 M' P0 f6 P2 H* V' i4 y+ U
- ESP.deepSleep(0);
& e% E6 H0 ~. N - } else {& N O/ b: K( G8 x, d' S. k
- server.begin();6 P* u9 p. G7 h3 k
- }/ {5 t" {$ g- e% H
- }
1 B- ]. z# \4 P; y0 l" O - void loop() {6 e, U0 [4 e( e) G/ W
- server.handleClient();
2 e0 |3 ?# G' z( i - delay(1);
+ r4 g* i$ `5 T4 y, {% y3 ^ - }
; R2 g7 I# V+ b! I% j7 W) n) c - String doGet(String url){
$ ^- l2 O ]3 a M4 w" [ - if ((WiFiMulti.run() == WL_CONNECTED)) {
3 j. H& ?8 @8 F1 ]" x% H* a - HTTPClient http;/ n5 x' W3 \' G' O1 I3 B
- Serial.println("[HTTP] begin...");: F. {/ g& @& e$ }5 {/ l- i" [
- if (url.startsWith("https")) {" o9 I- V$ J/ C
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
! R9 i! _3 K5 B. c" I: d3 X - } else {" v5 {! ~( E4 g
- http.begin(url);
( H% R1 }' l6 Y - }2 W8 {3 M" {3 C7 C
- Serial.println("[HTTP] GET...");
3 V* f. E/ n+ N* { - int httpCode = http.GET();
5 k+ _" `- F5 m+ Z R - if (httpCode > 0) {9 a- o4 b/ a* _
- Serial.printf("[HTTP] code: %d\n", httpCode);
. k0 P1 N, q$ e" o - if (httpCode == HTTP_CODE_OK) {
# @0 i u8 t z6 ]- `4 e - String payload = http.getString();
9 L% ]$ x# O; j2 r - Serial.println(payload);
( K) g1 \) k! P+ w7 R+ ^ - Serial.print("\r\n");
" e% W$ B) S. ^$ Q - return payload;2 x6 s) Z N0 I9 U
- }/ {8 |5 F+ |! z* x. n% M0 A
- } else {; r* A7 G) V5 F5 k7 I0 o6 J, ]
- Serial.printf("[HTTP] GET... failed, error: %s\n",
- K$ p. I6 {0 ~; y! F! g2 G4 Z4 u - http.errorToString(httpCode).c_str());
6 E# |( N' e! o7 N9 e/ A- r - }. z+ M% }+ k, F$ F! ?
- http.end(); x, h+ t; Q0 h. z
- return "";
' D: b2 y/ x2 z+ a; r - }4 A4 }4 v3 O5 B( c! e/ ?5 o
- } V8 i' M$ M" m% t, N
- void mainAction() {
' H" e8 g: c4 q2 i7 N - // 发送请求# J2 }/ ^8 V2 }
- doGet("http://google.cn");: w+ Z& U6 V! j6 p5 J3 x6 D
- }
4 I8 M' W3 o& X. q# G4 v
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